{"id":4339,"date":"2020-07-16T09:55:48","date_gmt":"2020-07-16T04:25:48","guid":{"rendered":"http:\/\/ncertsolutions.guru\/?p=4339"},"modified":"2020-07-17T08:42:45","modified_gmt":"2020-07-17T03:12:45","slug":"cbse-sample-papers-for-class-10-science-hindi-paper-2","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/cbse-sample-papers-for-class-10-science-hindi-paper-2\/","title":{"rendered":"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2"},"content":{"rendered":"<p>CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 is part of <a href=\"https:\/\/ncertsolutions.guru\/cbse-sample-papers-for-class-10-science-in-hindi-medium\/\">CBSE Sample Papers for Class 10 Science in Hindi Medium<\/a>. Here we have given CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2<\/p>\n<h2>CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2<\/h2>\n<table style=\"height: 188px;\" width=\"316\">\n<tbody>\n<tr>\n<td width=\"122\"><strong>Board<\/strong><\/td>\n<td width=\"122\">CBSE<\/td>\n<\/tr>\n<tr>\n<td width=\"122\"><strong>Class<\/strong><\/td>\n<td width=\"122\">X<\/td>\n<\/tr>\n<tr>\n<td width=\"122\"><strong>Subject<\/strong><\/td>\n<td width=\"122\">Science<\/td>\n<\/tr>\n<tr>\n<td width=\"122\"><strong>Sample Paper Set<\/strong><\/td>\n<td width=\"122\">Paper 2<\/td>\n<\/tr>\n<tr>\n<td width=\"122\"><strong>Category<\/strong><\/td>\n<td width=\"122\"><a href=\"http:\/\/ncertsolutions.guru\/cbse-sample-papers\/\">CBSE Sample Papers<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Students who are going to appear for CBSE Class 10 Examinations are advised to practice the CBSE sample papers given here which is designed as per the latest Syllabus and marking scheme as prescribed by the CBSE is given here. Paper 2 of Solved CBSE Sample Papers for Class 10 Science in Hindi Medium is given below with free PDF download solutions.<\/p>\n<p><strong>\u0938\u092e\u092f : 3 \u0918\u0923\u094d\u091f\u0947<\/strong><br \/>\n<strong>\u092a\u0942\u0930\u094d\u0923\u093e\u0902\u0915 : 80<\/strong><\/p>\n<p style=\"text-align: center;\"><strong>\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0928\u093f\u0930\u094d\u0926\u0947\u0936 :<\/strong><\/p>\n<ul>\n<li>\u0907\u0938 \u092a\u094d\u0930\u0936\u094d\u0928 \u092a\u0924\u094d\u0930 \u0915\u0947 \u0926\u094b \u092d\u093e\u0917, A \u0935 B \u0939\u0948\u0902\u0964 \u0906\u092a \u0915\u094b \u0926\u094b\u0928\u094b\u0902 \u092d\u093e\u0917 \u0915\u0930\u0928\u0947 \u0939\u0948\u0902\u0964<\/li>\n<li>\u0938\u092d\u0940 \u092a\u094d\u0930\u0936\u094d\u0928 \u0905\u0928\u093f\u0935\u093e\u0930\u094d\u092f \u0939\u0948\u0902\u0964<\/li>\n<li>\u092d\u093e\u0917 A \u0915\u0947 \u0938\u092d\u0940 \u092a\u094d\u0930\u0936\u094d\u0928 \u090f\u0915 \u0938\u093e\u0925 \u0915\u0930\u0928\u0947 \u0939\u0948\u0902 \u0924\u0925\u093e \u092d\u093e\u0917 B \u0915\u0947 \u0938\u092d\u0940 \u092a\u094d\u0930\u0936\u094d\u0928 \u090f\u0915 \u0938\u093e\u0925 \u0915\u0930\u0928\u0947 \u0939\u0948\u0902\u0964<\/li>\n<li>\u092d\u093e\u0917 A \u0915\u0947 \u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u0902\u0966 1 \u0935 2 \u090f\u0915 \u0905\u0902\u0915 \u0915\u0947 \u0939\u0948\u0902\u0964 \u0907\u0928\u0915\u093e \u0909\u0924\u094d\u0924\u0930 \u090f\u0915 \u0936\u092c\u094d\u0926 \u0905\u0925\u0935\u093e \u090f\u0915 \u0935\u093e\u0915\u094d\u092f \u092e\u0947\u0902 \u0932\u093f\u0916\u0928\u093e \u0939\u0948\u0964<\/li>\n<li>\u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u0902\u0966 3 \u0938\u0947 5 \u0924\u0915 \u0926\u094b \u0905\u0902\u0915 \u0915\u0947 \u0939\u0948\u0902\u0964 \u0907\u0928\u0915\u093e \u0909\u0924\u094d\u0924\u0930 30 \u0936\u092c\u094d\u0926\u094b\u0902 \u092e\u0947\u0902 (\u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092a\u094d\u0930\u0936\u094d\u0928 \u0915\u0947 \u0932\u093f\u090f) \u0932\u093f\u0916\u093f\u090f\u0964<\/li>\n<li>\u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u0902\u0966 6 \u0938\u0947 15 \u0924\u0915 \u0924\u0940\u0928 \u0905\u0902\u0915 \u0915\u0947 \u0939\u0948\u0902\u0964 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092a\u094d\u0930\u0936\u094d\u0928 \u0915\u093e \u0909\u0924\u094d\u0924\u0930 50 \u0936\u092c\u094d\u0926\u094b\u0902 \u092e\u0947\u0902 \u0932\u093f\u0916\u093f\u090f\u0964<\/li>\n<li>\u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u0902\u0966 16 \u0938\u0947 21 \u0924\u0915 \u092a\u093e\u0901\u091a \u0905\u0902\u0915 \u0915\u0947 \u0939\u0948\u0902\u0964 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092a\u094d\u0930\u0936\u094d\u0928 \u0915\u093e \u0909\u0924\u094d\u0924\u0930 70 \u0936\u092c\u094d\u0926\u094b\u0902 \u092e\u0947\u0902 \u0932\u093f\u0916\u093f\u090f\u0964<\/li>\n<li>\u092d\u093e\u0917 B \u0915\u0947 \u092a\u094d\u0930\u0936\u094d\u0928 \u0938\u0902\u0966 22 \u0938\u0947 27 \u0924\u0915 \u092a\u094d\u0930\u092f\u094b\u0917\u093e\u0924\u094d\u092e\u0915 \u0915\u094c\u0936\u0932 \u092a\u0930 \u0906\u0927\u093e\u0930\u093f\u0924 \u0939\u0948\u0902\u0964 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092a\u094d\u0930\u0936\u094d\u0928 \u0926\u094b \u0905\u0902\u0915 \u0915\u093e \u0939\u0948\u0964<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><strong>SECTION A<\/strong><\/p>\n<p>\u092a\u094d\u0930\u09661.<br \/>\n\u091c\u092c \u0915\u093f\u0938\u0940 \u0905\u092e\u094d\u0932 \u0915\u094b \u092a\u093e\u0928\u0940 \u0921\u093e\u0932\u0915\u0930 \u0924\u0928\u0941 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u094b \u0909\u0938\u0915\u0947 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0928\u093f\u092f\u092e \u0906\u092f\u0928 (H<sub>3<\/sub>O)<sup>+<\/sup> \u0915\u0940 \u0938\u093e\u0928\u094d\u0926\u094d\u0930\u0924\u093e \u092a\u0930 \u0915\u094d\u092f\u093e \u092a\u094d\u0930\u092d\u093e\u0935 \u092a\u0921\u093c\u0947\u0917\u093e?<\/p>\n<p>\u092a\u094d\u0930\u09662.<br \/>\n\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0916\u093e\u0926\u094d\u092f \u0936\u094d\u0930\u0943\u0902\u0916\u0932\u093e \u092e\u0947\u0902 \u092f\u0926\u093f \u0936\u0947\u0930 \u0915\u094b 100 \u091c\u0942\u0932 \u090a\u0930\u094d\u091c\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0925\u0940 \u0924\u094b \u0939\u0930\u0947 \u092a\u094c\u0927\u0947 \u0915\u094b \u0915\u093f\u0924\u0928\u0940 \u090a\u0930\u094d\u091c\u093e \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0925\u0940\u0964<br \/>\n\u0939\u0930\u0947 \u092a\u094c\u0927\u0947 \u2192 \u0939\u093f\u0930\u0923 \u2192 \u0936\u0947\u0930<\/p>\n<p>\u092a\u094d\u0930\u09663.<br \/>\n(i) \u0935\u0928 \u0938\u0930\u0902\u0915\u094d\u0937\u0923 \u0924\u0925\u093e<br \/>\n(ii) \u091c\u0902\u0917\u0932\u0940 \u092a\u094d\u0930\u093e\u0923\u093f\u092f\u094b\u0902 \u0915\u0947 \u0938\u0930\u0902\u0915\u094d\u0937\u0923 \u092e\u0947\u0902 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u0947 \u0926\u094b-\u0926\u094b \u0932\u093e\u092d \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u09664.<br \/>\n\u0932\u094b\u0939\u0947 \u0915\u0940 \u092c\u0928\u0940 \u0935\u0938\u094d\u0924\u0941\u0913\u0902 \u0915\u094b \u091c\u0902\u0917 \u0932\u0917\u0928\u0947 \u0938\u0947 \u092c\u091a\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0926\u094b \u0909\u092a\u093e\u092f \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u09665.<br \/>\n\u091a\u0941\u092c\u0902\u0915\u0940\u092f \u092c\u0932 \u0930\u0947\u0916\u093e\u0913\u0902 \u0915\u0947 \u0917\u0941\u0923 \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u09666.<br \/>\n\u0927\u093e\u0924\u0941\u0913\u0902 \u0924\u0925\u093e \u0905\u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 \u092e\u0947\u0902 \u092d\u093f\u0928\u094d\u0928\u0924\u093e\u090f\u0901 \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u09667.<br \/>\n\u0905\u092e\u0940\u092c\u093e \u092e\u0947\u0902 \u092a\u094b\u0937\u0923 \u092a\u094d\u0930\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093e \u0935\u0930\u094d\u0923\u0928 \u0915\u0940\u091c\u093f\u090f\u0964<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n\u092e\u0928\u0941\u0937\u094d\u092f \u0915\u0947 \u0939\u0943\u0926\u092f \u0915\u093e \u0928\u093e\u092e\u093e\u0902\u0915\u093f\u0924 \u091a\u093f\u0924\u094d\u0930 \u092c\u0928\u093e\u0907\u090f\u0964 \u0909\u0924\u094d\u0924\u0930<\/p>\n<p>\u092a\u094d\u0930\u09668.<br \/>\n\u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u091a\u093e\u092a \u0915\u094d\u092f\u093e \u0939\u0948? \u0915\u093f\u0938\u0940 \u0917\u0930\u094d\u092e \u0935\u0938\u094d\u0924\u0941 \u0915\u094b \u091b\u0942 \u0932\u0947\u0928\u0947 \u092a\u0930 \u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u0915\u094d\u0930\u093f\u092f\u093e \u0915\u0947 \u0932\u093f\u090f, \u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u091a\u093e\u092a \u0915\u094b \u0928\u093e\u092e\u093e\u0902\u0915\u093f\u0924 \u091a\u093f\u0924\u094d\u0930 \u092c\u0928\u093e\u092f\u0947\u0902\u0964<\/p>\n<p>\u092a\u094d\u0930\u09669.<br \/>\n\u0924\u0940\u0928 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927\u0915, \u091c\u093f\u0928\u0915\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u093e \u092e\u093e\u0928 6 \u2126 \u0939\u0948, \u0906\u092a \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u091c\u094b\u0921\u093c\u0947\u0902\u0917\u0947 \u0915\u093f \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u092a\u0930\u093f\u092a\u0925 \u092e\u0947\u0902 \u0915\u0941\u0932 \u092a\u094d\u0930\u0924\u093f\u0930\u094b\u0927 \u0915\u093e \u092e\u093e\u0928<br \/>\n(a) 9\u2126<br \/>\n(b) 4\u2126 \u0939\u094b?<\/p>\n<p>\u092a\u094d\u0930\u096610.<br \/>\n\u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u092e\u0947\u0902 \u091a\u0941\u092c\u0902\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0926\u093f\u0916\u093e\u0924\u0947 \u0939\u0941\u090f \u091a\u093f\u0924\u094d\u0930 \u092c\u0928\u093e\u0907\u090f :<br \/>\n(i) \u091c\u092c \u090f\u0915 \u0935\u0943\u0924\u094d\u0924\u093e\u0915\u093e\u0930 \u0932\u0942\u092a\u0928\u0941\u092e\u093e \u091a\u093e\u0932\u0915 \u0924\u093e\u0930 \u092e\u0947\u0902 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b \u0930\u0939\u0940 \u0939\u0948\u0964<br \/>\n(ii) \u091c\u092c \u090f\u0915 \u092a\u0930\u093f\u0928\u0932\u093f\u0915\u093e \u092e\u0947\u0902 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0939\u094b \u0930\u0939\u0940 \u0939\u0948\u0964<\/p>\n<p>\u092a\u094d\u0930\u096611.<br \/>\n\u0910\u0925\u0947\u0928\u0949\u0932 \u0915\u093e \u0938\u0930\u0902\u091a\u0928\u093e \u0938\u0942\u0924\u094d\u0930 \u0932\u093f\u0916\u093f\u090f\u0964 \u0915\u094d\u092f\u093e \u0939\u094b\u0924\u093e \u0939\u0948, \u091c\u092c \u0910\u0925\u0947\u0928\u0949\u0932 \u0915\u094b 443K \u0924\u093e\u092a \u092a\u0930 \u0938\u093e\u0928\u094d\u0926\u094d\u0930 H<sub>2<\/sub>SO<sub>4<\/sub> \u0905\u092e\u094d\u0932 \u0915\u0947 \u0938\u093e\u0925 \u0917\u0930\u094d\u092e \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948? \u0907\u0938 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093e \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u092e\u0940\u0915\u0930\u0923 \u0932\u093f\u0916\u093f\u090f \u0924\u0925\u093e \u0907\u0938\u092e\u0947\u0902 \u0938\u093e\u0928\u094d\u0926\u094d\u0930 H<sub>2<\/sub>SO<sub>4<\/sub> \u0905\u092e\u094d\u0932 \u0915\u093e \u0915\u094d\u092f\u093e \u0915\u093e\u0930\u094d\u092f \u0939\u0948?<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n\u090f\u0938\u094d\u091f\u0930\u0940\u0915\u0930\u0923 \u0924\u0925\u093e \u0938\u093e\u092c\u0941\u0928\u0940\u0915\u0930\u0923 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e\u0913\u0902 \u092e\u0947\u0902 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0938\u092e\u0940\u0915\u0930\u0923 \u0926\u094d\u0935\u093e\u0930\u093e \u0905\u0902\u0924\u0930 \u0938\u094d\u092a\u0937\u094d\u091f \u0915\u0940\u091c\u093f\u090f\u0964 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0915\u093e \u090f\u0915-\u090f\u0915 \u0909\u092a\u092f\u094b\u0917 \u0932\u093f\u0916\u093f\u090f :<br \/>\n(a) \u090f\u0938\u094d\u091f\u0930\u094d\u0938<br \/>\n(b) \u0938\u093e\u092c\u0941\u0928\u0940\u0915\u0930\u0923 \u0935\u093f\u0927\u093f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096612.<br \/>\nNa, Mg \u0924\u0925\u093e Al, \u0906\u0927\u0941\u0928\u093f\u0915 \u0906\u0935\u0930\u094d\u0924 \u0938\u093e\u0930\u0923\u0940 \u0915\u0947 \u0924\u0940\u0938\u0930\u0947 \u0906\u0935\u0930\u094d\u0924 \u0915\u0947 \u0924\u0924\u094d\u0935 \u0939\u0948\u0902\u0964 \u0907\u0928\u0915\u093e \u0938\u092e\u0942\u0939 \u0915\u094d\u0930\u092e\u0936\u0903 1,2 \u0935 13 \u0939\u0948\u0964 \u0907\u0928\u092e\u0947\u0902 \u0938\u0947,<br \/>\n(a) \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e;<br \/>\n(b) \u0938\u092c\u0938\u0947 \u092c\u0921\u093c\u093e \u092a\u0930\u092e\u093e\u0923\u0941 \u0906\u0915\u093e\u0930 \u0935<br \/>\n(c) \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e, \u0915\u093f\u0938\u0915\u0940 \u0939\u0948? \u0905\u092a\u0928\u0947 \u0909\u0924\u094d\u0924\u0930 \u0915\u0947 \u0932\u093f\u090f \u0915\u093e\u0930\u0923 \u092d\u0940 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\u091c\u093e\u090f&#8217;, \u0935\u093f\u0937\u092f \u092a\u0930 \u090f\u0915 \u0930\u091a\u0928\u093e\u0924\u094d\u092e\u0915 \u0906\u0915\u0932\u0928 \u0915\u094d\u0930\u093f\u092f\u093e\u0915\u0932\u093e\u092a \u0915\u0940 \u092f\u094b\u091c\u0928\u093e \u092c\u0928\u093e\u090f\u0902\u0964 \u0906\u092a \u0915\u094b\u0908 \u0926\u094b \u0910\u0938\u0947 \u0909\u092a\u093e\u092f \u092c\u0924\u093e\u0907\u090f \u091c\u094b \u0915\u093f \u0906\u092a\u0915\u0947 \u092a\u0921\u093c\u094b\u0938 \u0915\u094b \u2018\u092a\u093e\u0928\u0940 \u0915\u094b \u0915\u0948\u0938\u0947 \u092c\u091a\u093e\u092f\u093e \u091c\u093e\u090f&#8217; \u0915\u0947 \u0932\u093f\u092f\u0947 \u091c\u093e\u0917\u0930\u0942\u0915 \u0915\u0930 \u0938\u0915\u0947\u0902\u0964<br \/>\n(b) \u090f\u0915 \u0910\u0938\u093e \u0938\u0941\u091d\u093e\u0935 \u0926\u0940\u091c\u093f\u090f \u091c\u093f\u0938\u0938\u0947 \u092d\u094c\u092e \u091c\u0932 \u0915\u093e \u0938\u094d\u0924\u0930 \u0914\u0930 \u0928\u0940\u091a\u0947 \u0928 \u091c\u093e\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096616.<br \/>\n(a) \u0939\u092e\u093e\u0930\u0947 \u0926\u0948\u0928\u093f\u0915 \u091c\u0940\u0935\u0928 \u092e\u0947\u0902 pH \u0915\u093e \u0915\u094d\u092f\u093e \u092e\u0939\u0924\u094d\u0924\u094d\u0935 \u0939\u0948?<br \/>\n(b) \u0938\u093e\u0927\u093e\u0930\u0923 \u0928\u092e\u0915 \u0938\u0947 Cl<sub>2<\/sub> ( \u0915\u094d\u0932\u094b\u0930\u0940\u0928) \u0917\u0948\u0938 \u0924\u0925\u093e \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921 \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u092c\u0928\u093e \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964 \u0907\u0938 \u092a\u094d\u0930\u0915\u094d\u0930\u092e \u0915\u094b \u0915\u094d\u092f\u093e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902?<\/p>\n<p>\u092a\u094d\u0930\u096617.<br \/>\n(a) \u090f\u0915 \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0915\u094b\u0936\u093f\u0915\u093e (\u0928\u094d\u092f\u0942\u0930\u0949\u0928) \u0915\u093e \u091a\u093f\u0924\u094d\u0930 \u092c\u0928\u093e\u0915\u0930 \u0907\u0938\u0915\u093e \u0915\u093e\u0930\u094d\u092f \u0932\u093f\u0916\u093f\u090f\u0964<br \/>\n(b) \u092a\u094c\u0927\u094b\u0902 \u092e\u0947\u0902 \u092a\u094d\u0930\u0915\u093e\u0936\u093e\u0928\u0941\u0935\u0930\u094d\u0924\u0928 \u0915\u0948\u0938\u0947 \u0939\u094b\u0924\u093e \u0939\u0948?<\/p>\n<p>\u092a\u094d\u0930\u096618.<br \/>\n(a) \u0938\u094c\u0930 \u0938\u0947\u0932 \u092a\u0948\u0928\u0932 \u0915\u093e \u0935\u0930\u094d\u0923\u0928 \u0915\u0940\u091c\u093f\u090f\u0964<br \/>\n(b) \u090f\u0915 \u092a\u0935\u0928 \u091a\u0915\u094d\u0915\u0940 \u0915\u0947 \u0915\u093e\u0930\u094d\u092f \u0938\u093f\u0902\u0926\u094d\u0927\u093e\u0924 \u0915\u0947 \u0935\u093f\u0937\u092f \u092e\u0947\u0902 \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096619.<br \/>\n\u0915\u0941\u091b \u092f\u094c\u0917\u093f\u0915\u094b\u0902 \u0915\u094b \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0915\u093e\u0930\u094d\u092c\u0928 \u0915\u094d\u092f\u094b\u0902 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902? \u090f\u0932\u094d\u0915\u0947\u0928, \u090f\u0932\u094d\u0915\u0940\u0928, \u090f\u0932\u094d\u0915\u093e\u0907\u0928 \u0936\u094d\u0930\u0947\u0923\u093f\u092f\u094b\u0902 \u0915\u094b \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0938\u0942\u0924\u094d\u0930 \u0932\u093f\u0916\u093f\u090f\u0964 \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u0947 \u092a\u0939\u0932\u0947 \u0938\u0926\u0938\u094d\u092f \u0915\u093e \u0938\u0930\u0902\u091a\u0928\u093e \u0938\u0942\u0924\u094d\u0930 \u092d\u0940 \u0932\u093f\u0916\u093f\u090f\u0964 \u0909\u0938 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093e \u0928\u093e\u092e \u0932\u093f\u0916\u093f\u090f \u091c\u093f\u0938 \u0926\u094d\u0935\u093e\u0930\u093e \u090f\u0932\u094d\u0915\u0940\u0928 \u092f\u094c\u0917\u093f\u0915\u094b\u0902 \u0915\u094b \u090f\u0932\u094d\u0915\u0947\u0928 \u092e\u0947\u0902 \u092c\u0926\u0932\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u0915\u093e \u0938\u092e\u0940\u0915\u0930\u0923 \u092d\u0940 \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096620.<br \/>\n(a) \u092e\u0928\u0941\u0937\u094d\u092f \u0915\u0947 \u092e\u093e\u0926\u093e \u091c\u0928\u0928 \u0924\u0902\u0924\u094d\u0930 \u092e\u0947\u0902 \u0928\u093f\u092e\u094d\u0928\u0932\u093f\u0916\u093f\u0924 \u0915\u0947 \u0915\u093e\u0930\u094d\u092f \u0932\u093f\u0916\u093f\u090f :<br \/>\n(i) \u0905\u0923\u094d\u0921\u093e\u0936\u092f<br \/>\n(ii) \u0917\u0930\u094d\u092d\u093e\u0936\u092f<br \/>\n(iii) \u0905\u0923\u094d\u0921\u0935\u093e\u0939\u093f\u0915\u093e<br \/>\n(b) \u092e\u0928\u0941\u0937\u094d\u092f \u0915\u0940 \u092e\u093e\u0926\u093e \u092e\u0947\u0902 \u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u0915\u0940 \u0938\u0930\u0902\u091a\u0928\u093e \u0935 \u0909\u0938\u0915\u093e \u0915\u093e\u0930\u094d\u092f \u0932\u093f\u0916\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096621.<br \/>\n(a) \u092f\u0926\u093f \u090f\u0915 \u0926\u0930\u094d\u092a\u0923 \u0926\u094d\u0935\u093e\u0930\u093e \u0909\u0938\u0915\u0947 \u0938\u093e\u092e\u0928\u0947 \u0930\u0916\u0940 \u0935\u0938\u094d\u0924\u0941 \u0915\u0940 \u0938\u092d\u0940 \u0938\u094d\u0925\u093f\u0924\u093f\u092f\u094b\u0902 \u0915\u0947 \u0932\u093f\u090f \u0909\u0938\u0915\u093e \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0939\u092e\u0947\u0936\u093e \u091b\u094b\u091f\u093e, \u0938\u0940\u0927\u093e \u0935 \u0915\u093e\u0932\u094d\u092a\u0928\u093f\u0915 \u092c\u0928\u0924\u093e \u0939\u0948 \u0924\u094b \u0935\u0939 \u0926\u0930\u094d\u092a\u0923 \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0939\u0948? \u0905\u092a\u0928\u0947 \u0909\u0924\u094d\u0924\u0930 \u0915\u0940 \u092a\u0941\u0937\u094d\u091f\u093f \u0915\u0947 \u0932\u093f\u090f \u090f\u0915 \u0915\u093f\u0930\u0923 \u0906\u0930\u0947\u0916 \u092c\u0928\u093e\u0907\u090f\u0964 \u0907\u0938 \u0926\u0930\u094d\u092a\u0923 \u0915\u093e \u090f\u0915 \u0909\u092a\u092f\u094b\u0917 \u092d\u0940 \u0932\u093f\u0916\u093f\u090f\u0964<br \/>\n(b) \u0915\u093f\u0938\u0940 \u0917\u094b\u0932\u0940\u092f \u0926\u0930\u094d\u092a\u0923 \u0915\u0940 \u0935\u0915\u094d\u0930\u0924\u093e \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u0940 \u092a\u0930\u093f\u092d\u093e\u0937\u093e \u0932\u093f\u0916\u093f\u090f\u0964 \u0909\u0938 \u0926\u0930\u094d\u092a\u0923 \u0915\u0940 \u092b\u094b\u0915\u0938 \u0926\u0942\u0930\u0940 \u091c\u094d\u091e\u093e\u0924 \u0915\u0940\u091c\u093f\u090f \u091c\u093f\u0938\u0915\u0940 \u0935\u0915\u094d\u0930\u0924\u093e \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e +24 \u0938\u0947\u092e\u0940\u0964 \u092f\u0939 \u0926\u0930\u094d\u092a\u0923 \u0915\u093f\u0938\u0940 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093e \u0939\u0948\u0964<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n(a) \u090f\u0915 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u0940 \u091c\u094b \u0928\u093f\u0915\u091f \u0926\u0943\u0937\u094d\u091f\u093f \u0926\u094b\u0937 \u0938\u0947 \u092a\u0940\u0921\u093c\u093f\u0924 \u0939\u0948, \u0935\u0939 5 m \u0938\u0947 \u0926\u0942\u0930 \u0930\u0916\u0940 \u0935\u0938\u094d\u0924\u0941\u0913\u0902 \u0915\u094b \u0920\u0940\u0915 \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u0947 \u0928\u0939\u0940\u0902 \u0926\u0947\u0916 \u092a\u093e\u0924\u093e \u0939\u0948\u0964 \u0910\u0938\u0947 \u0926\u094b \u0915\u093e\u0930\u0923 \u0932\u093f\u0916\u093f\u090f \u091c\u093f\u0938\u0915\u0947 \u0915\u093e\u0930\u0923 \u0909\u0938\u0947 \u092f\u0939 \u0926\u0943\u0937\u094d\u091f\u093f \u0926\u094b\u0937 \u0939\u0941\u0906 \u0939\u0948\u0964 \u0915\u093f\u0930\u0923<br \/>\n\u0906\u0930\u0947\u0916\u094b\u0902 \u0915\u0940 \u0938\u0939\u093e\u092f\u0924\u093e \u0938\u0947 \u0938\u092e\u091d\u093e\u0907\u090f \u0915\u093f :<br \/>\n(i) \u0935\u0939 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u0940 5 m \u0938\u0947 \u0905\u0927\u093f\u0915 \u0926\u0942\u0930\u0940 \u092a\u0930 \u0930\u0916\u0940 \u0935\u0938\u094d\u0924\u0941\u0913\u0902 \u0915\u094b \u0920\u0940\u0915 \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u0947 \u0915\u094d\u092f\u094b\u0902 \u0928\u0939\u0940\u0902 \u0926\u0947\u0916 \u092a\u093e\u0924\u093e?<br \/>\n(ii) \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0932\u0947\u0902\u0938 \u0938\u0947 \u092f\u0939 \u0926\u0943\u0937\u094d\u091f\u093f \u0926\u094b\u0937 \u0920\u0940\u0915 \u0939\u094b \u0938\u0915\u0924\u093e \u0939\u0948?<br \/>\n(b) \u0907\u0938 \u0926\u094b\u0937 \u092e\u0947\u0902 \u092f\u0926\u093f \u0920\u0940\u0915 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0947 \u0932\u0947\u0902\u0938 \u0915\u0940 \u092b\u094b\u0915\u0938 \u0926\u0942\u0930\u0940 5 m \u0939\u0948 \u0924\u094b \u0907\u0938 \u0932\u0947\u0902\u0938 \u0915\u0940 \u0936\u0915\u094d\u0924\u093f \u091a\u093f\u0928\u094d\u0939 \u092a\u0930\u093f\u092a\u093e\u091f\u0940 \u0905\u0928\u0941\u0938\u093e\u0930 \u091c\u094d\u091e\u093e\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/p>\n<p style=\"text-align: center;\"><strong>SECTION B<\/strong><\/p>\n<p>\u092a\u094d\u0930\u096622.<br \/>\n(a) \u0915\u093f\u0938\u0940 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u0915\u0947 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u092a \u0938\u0947 \u0924\u0941\u092e \u0915\u094d\u092f\u093e \u0938\u092e\u091d\u0924\u0947 \u0939\u094b?<br \/>\n(b) \u090f\u0915 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u092e\u0947\u0902 0 \u0938\u0947 0.5V \u091a\u093f\u0928\u094d\u0939 \u0915\u0947 \u092c\u0940\u091a 20 \u091b\u094b\u091f\u0947 \u092d\u093e\u0917 \u0905\u0902\u0915\u093f\u0924 \u0939\u0948\u0902\u0964 \u0907\u0938 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u0915\u0940 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u092a \u0915\u093e \u092e\u093e\u0928 \u091c\u094d\u091e\u093e\u0924 \u0915\u0940\u091c\u093f\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096623.<br \/>\n(a) \u0915\u093f\u0938\u0940 pH \u092a\u0947\u092a\u0930 \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u090f\u0915 \u0935\u093f\u0932\u092f\u0928 \u0915\u0947 pH \u092e\u093e\u0928 \u0915\u094b \u0928\u093f\u0915\u093e\u0932\u0928\u0947 \u092e\u0947\u0902 \u0915\u0948\u0938\u0947 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<br \/>\n(b) \u092f\u0926\u093f \u091c\u0932 \u0915\u093e pH \u092e\u093e\u0928 7 \u0939\u0948 \u0924\u094b \u0907\u0938\u0915\u0940 \u0924\u0941\u0932\u0928\u093e \u092e\u0947\u0902<br \/>\n(i) \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921 \u0915\u0947 \u091c\u0932\u0940\u092f \u0935\u093f\u0932\u092f\u0928 \u0935<br \/>\n(ii) \u0924\u0928\u0941 HCl \u0905\u092e\u094d\u0932 \u0915\u093e pH \u092e\u093e\u0928 \u0915\u094d\u092f\u093e \u0939\u094b\u0917\u093e?<\/p>\n<p>\u092a\u094d\u0930\u096624.<br \/>\n\u090f\u0915 \u092a\u0924\u094d\u0924\u0940 \u0915\u0940 \u091d\u093f\u0932\u094d\u0932\u0940 \u092e\u0947\u0902 \u0938\u094d\u091f\u094b\u092e\u0947\u091f\u094b \u091b\u093f\u0926\u094d\u0930\u094b\u0902 \u0915\u094b \u0926\u0947\u0916\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f, \u090f\u0915 \u0905\u0938\u094d\u0925\u093e\u0908 \u0938\u094d\u0932\u093e\u0907\u0921 \u0915\u0947 \u092c\u0928\u093e\u0924\u0947 \u0938\u092e\u092f \u0939\u092e\u0947\u0902 \u0915\u094d\u092f\u093e-\u0915\u094d\u092f\u093e \u0938\u093e\u0935\u0927\u093e\u0928\u093f\u092f\u093e\u0902 \u0905\u092a\u0928\u093e\u0928\u0940 \u091a\u093e\u0939\u093f\u090f?<\/p>\n<p>\u092a\u094d\u0930\u096625.<br \/>\n\u092a\u094d\u0930\u092f\u094b\u0917\u0936\u093e\u0932\u093e \u092e\u0947\u0902 \u0938\u093e\u092c\u0941\u0928 \u092c\u0928\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0939\u092e\u0947\u0902 \u0915\u094c\u0928-\u0915\u094c\u0928 \u0938\u0947 \u0930\u0938\u093e\u092f\u0928\u094b\u0902 \u0915\u0940 \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e \u0939\u094b\u0917\u0940\u0964 \u0938\u093e\u092c\u0941\u0928\u0940\u0915\u0930\u0923 \u0915\u0940 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902 \u0905\u092d\u093f\u0915\u093e\u0930\u0915\u094b\u0902 \u0915\u0947 \u092e\u093f\u0936\u094d\u0930\u0923 \u0915\u0940 \u092a\u094d\u0930\u0915\u0943\u0924\u093f (\u0905\u092e\u094d\u0932\u0940\u092f \u0905\u0925\u0935\u093e \u0915\u094d\u0937\u093e\u0930\u0940\u092f) \u091c\u093e\u0928\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0939\u092e \u0915\u094c\u0928-\u0938\u093e \u091f\u0947\u0938\u094d\u091f \u0915\u0930\u0947\u0902\u0917\u0947?<\/p>\n<p>\u092a\u094d\u0930\u096626.<br \/>\n\u0905\u092e\u0940\u092c\u093e \u092e\u0947\u0902 \u0926\u094d\u0935\u093f\u0916\u0923\u094d\u0921\u0928 \u0935\u093f\u0927\u093f \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u094d\u0930\u091c\u0928\u0928 \u0926\u093f\u0916\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u094d\u0930\u092e \u0938\u0947 (\u091a\u093e\u0930 \u0905\u0935\u0938\u094d\u0925\u093e\u090f\u0901 \u0926\u093f\u0916\u093e\u0924\u0947 \u0939\u0941\u090f) \u091a\u093f\u0924\u094d\u0930 \u092c\u0928\u093e\u0907\u090f\u0964<\/p>\n<p>\u092a\u094d\u0930\u096627.<br \/>\n\u090f\u0915 \u0935\u093f\u0926\u094d\u092f\u093e\u0930\u094d\u0925\u0940 \u090f\u0915 \u092e\u094b\u092e\u092c\u0924\u094d\u0924\u0940 \u0915\u0940 \u091c\u094d\u0935\u093e\u0932\u093e, \u091c\u094b \u090f\u0915 \u0909\u0924\u0932 \u0932\u0947\u0902\u0938 \u0938\u0947 2 m \u0915\u0940 \u0926\u0942\u0930\u0940 \u092a\u0930 \u092a\u0921\u093c\u0940 \u0939\u0948, \u0915\u0947 \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u0902\u092c \u0915\u094b \u090f\u0915 \u092a\u0930\u0926\u0947 \u092a\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u0932\u0947\u0902\u0938 \u0915\u0940 \u092b\u094b\u0915\u0938 \u0926\u0942\u0930\u0940 10 cm \u0939\u0948\u0964 \u0905\u092c \u0935\u0939 \u092e\u094b\u092e\u092c\u0924\u094d\u0924\u0940 \u0915\u0940 \u091c\u094d\u0935\u093e\u0932\u093e \u0915\u094b \u0927\u0940\u0930\u0947-\u0927\u0940\u0930\u0947 \u0932\u0947\u0902\u0938 \u0915\u0940 \u0924\u0930\u092b \u0932\u0947 \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u0925\u093e \u092a\u094d\u0930\u0924\u094d\u092f\u0947\u0915 \u092c\u093e\u0930\u0940 \u0909\u0938\u0915\u0947 \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0915\u094b \u092a\u0930\u0926\u0947 \u092a\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u0905\u092c \u0907\u0928\u0915\u093e \u0909\u0924\u094d\u0924\u0930 \u0926\u0940\u091c\u093f\u090f :<br \/>\n(a) \u0935\u0939 \u0939\u0930 \u092c\u093e\u0930 \u0932\u0947\u0902\u0938 \u0915\u094b \u0915\u093f\u0938 \u0924\u0930\u092b \u0932\u0947 \u091c\u093e\u092f\u0947\u0917\u093e \u0924\u093e\u0915\u093f \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0939\u0930 \u092c\u093e\u0930 \u092a\u0930\u094d\u0926\u0947 \u092a\u0930 \u092b\u094b\u0915\u0938 \u0939\u094b \u0938\u0915\u0947\u0964<br \/>\n(b) \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0915\u0947 \u0906\u0915\u093e\u0930 \u092e\u0947\u0902 \u0915\u094d\u092f\u093e \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0924\u0928 \u0939\u094b\u0924\u093e \u091c\u093e\u0924\u093e \u0939\u0948?<br \/>\n(c) \u092a\u0930\u0926\u0947 \u092a\u0930 \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0915\u0940 \u091a\u092e\u0915 \u0915\u093e \u0915\u094d\u092f\u093e \u092a\u094d\u0930\u092d\u093e\u0935 \u092a\u0921\u093c\u0924\u093e \u0939\u0948?<br \/>\n(d) \u091c\u092c \u091c\u094d\u0935\u093e\u0932\u093e \u0932\u0947\u0902\u0938 \u0915\u0947 \u0915\u093e\u092b\u0940 \u0928\u091c\u093c\u0926\u0940\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0924\u094b \u092a\u0930\u0926\u0947 \u092a\u0930 \u0915\u094d\u092f\u093e \u0926\u093f\u0916\u093e\u0908 \u092a\u0921\u093c\u0924\u093e \u0939\u0948 (\u0932\u0917\u092d\u0917 \u0932\u0947\u0902\u0938 \u0938\u0947 2 cm \u0926\u0942\u0930\u0940 \u092a\u0930)\u0964<\/p>\n<p style=\"text-align: center;\"><strong>Answers<\/strong><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 1-<br \/>\n\u0915\u093f\u0938\u0940 \u0905\u092e\u094d\u0932 \u0915\u094b \u092a\u093e\u0928\u0940 \u0921\u093e\u0932\u0915\u0930 \u0924\u0928\u0941 \u0915\u0930\u0928\u0947 \u092a\u0930 \u0909\u0938\u0915\u0947 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0928\u093f\u092f\u092e \u0906\u092f\u0928 (H<sub>3<\/sub>O)<sup>+<\/sup> \u0915\u0940 \u0938\u093e\u0928\u094d\u0926\u094d\u0930\u0924\u093e \u0915\u092e \u0939\u094b \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 2-<br \/>\n10,00,000 \u091c\u0942\u0932 (10 \u0932\u093e\u0916 \u091c\u0942\u0932)\u0964\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 3-<\/p>\n<ul>\n<li>\u0935\u0928 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0915\u0947 \u0932\u093e\u092d :<br \/>\n(a) \u0935\u0928 \u0938\u0930\u0902\u0915\u094d\u0937\u0923 \u0938\u0947 \u092c\u093e\u0922\u093c \u0924\u0925\u093e \u092d\u0942\u092e\u093f \u0915\u091f\u093e\u0935 \u0915\u094b \u0930\u094b\u0915\u0928\u0947 \u092e\u0947\u0902 \u0938\u0939\u093e\u092f\u0924\u093e \u092e\u093f\u0932\u0924\u0940 \u0939\u0948\u0964<br \/>\n(b) \u0935\u0928 \u0938\u0930\u0902\u0915\u094d\u0937\u0923 \u0938\u0947 \u0909\u0938 \u0938\u094d\u0925\u093e\u0928 \u0915\u0940 &#8216;\u091c\u0948\u0935 \u0935\u093f\u0935\u093f\u0927\u0924\u093e&#8217; \u092d\u0932\u0940 \u092a\u094d\u0930\u0915\u093e\u0930 \u092c\u0928\u0940 \u0930\u0939\u0924\u0940 \u0939\u0948\u0964<br \/>\n(c) \u0935\u0928 \u0938\u0930\u0902\u0915\u094d\u0937\u0923 \u092c\u093e\u0922\u093c \u091c\u0948\u0938\u0940 \u092d\u092f\u093e\u0928\u0915 \u092a\u094d\u0930\u093e\u0915\u0943\u0924\u093f\u0915 \u0906\u092a\u0926\u093e \u0915\u094b \u092d\u0940 \u0930\u094b\u0915\u0928\u0947 \u092e\u0947\u0902 \u0938\u0939\u093e\u092f\u0915 \u0939\u0948\u0964<\/li>\n<li>\u091c\u0902\u0917\u0932\u0940 \u092a\u094d\u0930\u093e\u0923\u093f\u092f\u094b\u0902 \u0915\u0947 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 :<br \/>\n(a) \u0907\u0928\u0915\u0947 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0938\u0947 \u092a\u0930\u094d\u092f\u093e\u0935\u0930\u0923 \u092e\u0947\u0902 \u0938\u0902\u0924\u0941\u0932\u0928 \u092c\u0928\u093e\u092f\u0947 \u0930\u0916\u0928\u0947 \u092e\u0947\u0902 \u0938\u0939\u093e\u092f\u0924\u093e \u092e\u093f\u0932\u0924\u0940 \u0939\u0948\u0964<br \/>\n(b) \u091c\u0902\u0917\u0932\u0940 \u092a\u094d\u0930\u093e\u0923\u093f\u092f\u094b\u0902 \u0915\u0947 \u0938\u0902\u0930\u0915\u094d\u0937\u0923 \u0938\u0947 \u0916\u093e\u0926\u094d\u092f \u0936\u094d\u0930\u0943\u0902\u0916\u0932\u093e\u090f\u0901 \u0924\u0925\u093e \u0916\u093e\u0926\u094d\u092f \u091c\u093e\u0932 \u0938\u0941\u0930\u0915\u094d\u0937\u093f\u0924 \u0930\u0939\u0924\u0947 \u0939\u0948\u0902\u0964<\/li>\n<\/ul>\n<p>\u0909\u0924\u094d\u0924\u0930 4-<br \/>\n(i) \u0932\u094b\u0939\u0947 \u0915\u0940 \u0935\u0938\u094d\u0924\u0941\u0913\u0902 \u092a\u0930 \u092a\u0947\u0902\u091f \u0924\u0925\u093e \u0917\u094d\u0930\u0940\u0938 \u0932\u0917\u093e\u0915\u0930\u0964\u0964<br \/>\n(ii) \u0932\u094b\u0939\u0947 \u0915\u0940 \u0935\u0938\u094d\u0924\u0941\u0913\u0902 \u092a\u0930 \u0917\u0948\u0932\u094d\u0935\u0947\u0928\u093e\u0907\u091c\u0947\u0936\u0928 \u0935\u093f\u0927\u093f \u0926\u094d\u0935\u093e\u0930\u093e \u091c\u0938\u094d\u0924\u0947 \u0915\u0940 \u092a\u0930\u0924 \u091a\u0922\u093c\u093e\u0915\u0930\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 5-<br \/>\n(i) \u092f\u0947 \u092c\u0932 \u0930\u0947\u0916\u093e\u090f\u0901 \u091b\u0921\u093c \u091a\u0941\u092c\u0902\u0915 \u0915\u0947 N \u0927\u094d\u0930\u0941\u0935 \u0938\u0947 \u0906\u0930\u0902\u092d \u0939\u094b\u0915\u0930 S \u0927\u094d\u0930\u0941\u0935 \u0915\u0940 \u0913\u0930 \u091c\u093e\u0924\u0940 \u0939\u0948\u0902\u0964<br \/>\n(ii) \u0915\u094b\u0908 \u092d\u0940 \u0926\u094b \u091a\u0941\u092c\u0902\u0915\u0940\u092f \u092c\u0932 \u0930\u0947\u0916\u093e\u090f\u0901 \u092a\u0930\u0938\u094d\u092a\u0930 \u0915\u093e\u091f\u0924\u0940 \u0928\u0939\u0940\u0902 \u0939\u0948\u0902\u0964<br \/>\n(iii) \u091a\u0941\u092c\u0902\u0915 \u0915\u0947 \u0927\u094d\u0930\u0941\u0935\u094b\u0902 \u0915\u0947 \u092a\u093e\u0938 \u092f\u0947 \u092c\u0932 \u0930\u0947\u0916\u093e\u090f\u0901 \u0905\u0927\u093f\u0915 \u0938\u0902\u0916\u094d\u092f\u093e \u092e\u0947\u0902 \u0939\u094b\u0924\u0940 \u0939\u0948\u0902\u0964<br \/>\n(iv) \u091a\u0941\u092c\u0902\u0915\u0940\u092f \u0930\u0947\u0916\u093e \u0915\u0947 \u0915\u093f\u0938\u0940 \u092c\u093f\u0928\u094d\u0926\u0941 \u092a\u0930 \u0909\u0938\u0915\u0947 \u0938\u093e\u0925 \u0916\u0940\u0902\u091a\u093e \u0917\u092f\u093e \u0905\u092d\u093f\u0932\u092e\u094d\u092c \u0909\u0938 \u092c\u093f\u0928\u094d\u0926\u0941 \u092a\u0930 \u091a\u0941\u092c\u0902\u0915\u0940\u092f \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0940 \u0926\u093f\u0936\u093e \u092c\u0924\u093e\u0924\u093e \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 6-<br \/>\n\u0927\u093e\u0924\u0941\u0913\u0902 \u0924\u0925\u093e \u0905\u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0947 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0917\u0941\u0923\u094b\u0902 \u092e\u0947\u0902 \u092d\u093f\u0928\u094d\u0928\u0924\u093e\u090f\u0901 : \u0927\u093e\u0924\u0941<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm8.staticflickr.com\/7847\/32625021208_e28d3570c1_o.png?resize=675%2C185&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 6\" width=\"675\" height=\"185\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 7-<br \/>\n\u0905\u092e\u0940\u092c\u093e \u0915\u094b\u0936\u093f\u0915\u0940\u092f \u0938\u0924\u0939 \u0938\u0947 \u0905\u0901\u0917\u0941\u0932\u0940 \u091c\u0948\u0938\u0947 \u0905\u0938\u094d\u0925\u093e\u092f\u0940 \u092a\u094d\u0930\u0935\u0930\u094d\u0927 \u0915\u0940 \u092e\u0926\u0926 \u0938\u0947 \u092d\u094b\u091c\u0928 \u0917\u094d\u0930\u0939\u0923 \u0915\u0930\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u092a\u094d\u0930\u0935\u0930\u094d\u0927 \u092d\u094b\u091c\u0928 \u0915\u0947 \u0915\u0923\u094b\u0902 \u0915\u094b \u0918\u0947\u0930 \u0932\u0947\u0924\u0947 \u0939\u0948\u0902 \u0924\u0925\u093e \u0938\u0902\u0917\u0932\u093f\u0924 \u0939\u094b\u0915\u0930 \u0916\u093e\u0926\u094d\u092f \u0930\u093f\u0915\u094d\u0924\u093f\u0915\u093e \u092c\u0928\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u0916\u093e\u0926\u094d\u092f \u0930\u093f\u0915\u094d\u0924\u093f\u0915\u093e \u0915\u0947 \u0905\u0902\u0926\u0930 \u091c\u091f\u093f\u0932 \u092a\u0926\u093e\u0930\u094d\u0925\u094b\u0902 \u0915\u093e \u0935\u093f\u0918\u091f\u0928 \u0938\u0930\u0932 \u092a\u0926\u093e\u0930\u094d\u0925\u094b\u0902 \u092e\u0947\u0902 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u0935\u0947 \u0915\u094b\u0936\u093f\u0915\u093e\u0926\u094d\u0930\u0935\u094d\u092f \u092e\u0947\u0902 \u0935\u093f\u0938\u0930\u093f\u0924 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u092c\u091a\u093e \u0939\u0941\u0906 \u0905\u092a\u091a\u0947 \u092a\u0926\u093e\u0930\u094d\u0925 \u0915\u094b\u0936\u093f\u0915\u093e \u0915\u0940 \u0938\u0924\u0939 \u0915\u0940 \u0913\u0930 \u0917\u0924\u093f \u0915\u0930\u0924\u093e \u0939\u0948 \u0924\u0925\u093e \u0936\u0930\u0940\u0930 \u0938\u0947 \u092c\u093e\u0939\u0930 \u0928\u093f\u0937\u094d\u0915\u093e\u0938\u093f\u0924 \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm8.staticflickr.com\/7859\/45584650385_42448be802_o.png?resize=479%2C258&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 7\" width=\"479\" height=\"258\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 8-<br \/>\n\u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u091a\u093e\u092a-\u0915\u093f\u0938\u0940 \u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u0915\u094d\u0930\u093f\u092f\u093e \u0915\u094b \u092a\u0942\u0930\u093e \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u091c\u093f\u0938 \u092a\u0925 \u0915\u094b \u0905\u092a\u0928\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948, \u0909\u0938\u0947 \u092a\u094d\u0930\u0924\u093f\u0935\u0930\u094d\u0924\u0940 \u091a\u093e\u092a \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm8.staticflickr.com\/7827\/32625020998_b8ec9324f3_o.png?resize=485%2C289&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 8\" width=\"485\" height=\"289\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0939\u0932 9-<br \/>\nR1 = R2 = R3 = 6 \u2126<br \/>\n(a) R1 \u0915\u094b R2 \u0935\u0947 R3 \u0915\u0947 \u0938\u092e\u093e\u0928\u094d\u0924\u0930 \u0915\u094d\u0930\u092e \u0915\u0947 \u0938\u093e\u0925 \u0936\u094d\u0930\u0947\u0923\u0940 \u0915\u094d\u0930\u092e \u092e\u0947\u0902 \u091c\u094b\u0921\u093c\u0928\u0947 \u092a\u0930 :<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm5.staticflickr.com\/4850\/32625020758_9d1d821e4b_o.png?resize=666%2C291&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 9\" width=\"666\" height=\"291\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 10-<br \/>\n(i)<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm8.staticflickr.com\/7888\/32625020628_3076af3629_o.png?resize=354%2C213&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 10\" width=\"354\" height=\"213\" data-recalc-dims=\"1\" \/><br \/>\n(ii)<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i1.wp.com\/farm8.staticflickr.com\/7822\/45584649925_ae357e7f09_o.png?resize=377%2C182&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 10.1\" width=\"377\" height=\"182\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 11-<br \/>\n\u0910\u0925\u0947\u0928\u0949\u0932 (C<sub>2<\/sub>H<sub>5<\/sub>OH) :<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm8.staticflickr.com\/7845\/45774543484_920c48d10f_o.png?resize=137%2C111&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 11\" width=\"137\" height=\"111\" data-recalc-dims=\"1\" \/><br \/>\n\u091c\u092c \u0939\u092e \u0910\u0925\u0947\u0928\u0949\u0932 \u0915\u094b \u0938\u093e\u0928\u094d\u0926\u094d\u0930 H<sub>2<\/sub>SO<sub>4<\/sub> \u0905\u092e\u094d\u0932 \u0915\u0947 \u0938\u093e\u0925 \u0917\u0930\u094d\u092e \u0915\u0930\u0924\u0947 \u0939\u0948 \u0924\u094b \u090f\u0925\u0940\u0928 \u0917\u0948\u0938 \u092c\u0928\u0924\u0940 \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm5.staticflickr.com\/4918\/44681100740_deab72e7da_o.png?resize=360%2C54&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 11.\" width=\"360\" height=\"54\" data-recalc-dims=\"1\" \/><br \/>\n\u0938\u093e\u0928\u094d\u0926\u094d\u0930 H<sub>2<\/sub>SO<sub>4<\/sub> \u0905\u092e\u094d\u0932 \u0928\u093f\u0930\u094d\u091c\u0932\u0940\u0915\u093e\u0930\u0915 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u0915\u093e\u0930\u094d\u092f \u0915\u0930\u0924\u093e \u0939\u0948 \u091c\u094b \u0928\u093f\u0930\u094d\u092e\u0941\u0915\u094d\u0924 \u091c\u0932 \u0915\u094b \u0905\u0935\u0936\u094b\u0937\u093f\u0924 \u0915\u0930\u0924\u093e \u0939\u0948\u0964<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n\u090f\u0938\u094d\u091f\u0930\u0940\u0915\u0930\u0923 ; \u0910\u0938\u0940 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902 \u090f\u0915 \u0910\u0932\u094d\u0915\u094b\u0939\u0949\u0932 \u0924\u0925\u093e \u090f\u0915 \u0915\u093e\u0930\u094d\u092c\u094b\u0915\u094d\u0938\u093f\u0932\u093f\u0915 \u0905\u092e\u094d\u0932 \u0915\u0947 \u0938\u093e\u0925 \u0938\u093e\u0928\u094d\u0926\u094d\u0930 H<sub>2<\/sub>SO<sub>4<\/sub> \u0915\u0940 \u0909\u092a\u0938\u094d\u0925\u093f\u0924\u093f \u092e\u0947\u0902 \u0915\u094d\u0930\u093f\u092f\u093e \u0915\u0930\u0915\u0947 \u0916\u0941\u0936\u092c\u0942\u0926\u093e\u0930 \u090f\u0938\u094d\u091f\u0930 \u092f\u094c\u0917\u093f\u0915 \u092c\u0928\u0924\u093e \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm8.staticflickr.com\/7871\/45774543844_453ae2d0c3_o.png?resize=546%2C59&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 11.1\" width=\"546\" height=\"59\" data-recalc-dims=\"1\" \/><br \/>\n\u0938\u093e\u092c\u0941\u0928\u0940\u0915\u0930\u0923 : \u0907\u0938 \u0905\u092d\u093f\u0915\u094d\u0930\u093f\u092f\u093e \u092e\u0947\u0902 \u090f\u0915 \u090f\u0938\u094d\u091f\u0930 \u0915\u0940 \u0915\u094d\u0930\u093f\u092f\u093e NaOH \u0915\u094d\u0937\u093e\u0930 \u0915\u0947 \u0938\u093e\u0925 \u0915\u0930\u0935\u093e\u0908 \u091c\u093e\u0924\u0940 \u0939\u0948 \u0924\u094b \u0905\u092e\u094d\u0932 \u0915\u093e \u090f\u0915 \u0938\u094b\u0921\u093f\u092f\u092e \u0932\u0935\u0923\u0947 \u0935 \u0910\u0932\u094d\u0915\u094b\u0939\u0949\u0932 \u092c\u0928\u0924\u0940 \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i1.wp.com\/farm8.staticflickr.com\/7876\/45774543684_5390421841_o.png?resize=555%2C51&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 11.2\" width=\"555\" height=\"51\" data-recalc-dims=\"1\" \/><br \/>\n\u0909\u092a\u092f\u094b\u0917 :<br \/>\n(i) \u090f\u0938\u094d\u091f\u0930\u094d\u0938 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0911\u0907\u0938\u0915\u094d\u0930\u0940\u092e \u0935 \u092a\u0947\u092f \u092a\u0926\u093e\u0930\u094d\u0925\u094b\u0902 \u0915\u094b \u092c\u0928\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(ii) \u0938\u093e\u092c\u0941\u0928\u0940\u0915\u0930\u0923 \u0935\u093f\u0927\u093f \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0935\u093f\u092d\u093f\u0928\u094d\u0928 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0938\u093e\u092c\u0941\u0928 \u092c\u0928\u093e\u0928\u0947 \u092e\u0947\u0902 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 12-<br \/>\n(a) Al \u0927\u093e\u0924\u0941 \u0915\u0940 \u0938\u0902\u092f\u094b\u091c\u0915\u0924\u093e \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0907\u0938\u0915\u0947 \u0938\u092c\u0938\u0947 \u092c\u093e\u0939\u0930\u0940 \u0915\u0915\u094d\u0937 \u092e\u0947\u0902 3 \u0907\u0932\u0947\u0915\u094d\u091f\u094d\u0930\u0949\u0928 \u0939\u0948\u0902\u0964<br \/>\n(b) Na \u0927\u093e\u0924\u0941 \u0915\u0947 \u092a\u0930\u092e\u093e\u0923\u0941\u0913\u0902 \u0915\u093e \u0906\u0915\u093e\u0930 \u0938\u092c\u0938\u0947 \u092c\u0921\u093c\u093e \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u090f\u0915 \u0906\u0935\u0930\u094d\u0924 \u092e\u0947\u0902 \u092c\u093e\u090f\u0902 \u0938\u0947 \u0926\u093e\u090f\u0902 \u091c\u093e\u0928\u0947 \u092a\u0930 \u092a\u0930\u092e\u093e\u0923\u0941 \u0906\u0915\u093e\u0930 \u0915\u092e \u0939\u094b\u0924\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(c) Na \u0927\u093e\u0924\u0941 \u0938\u092c\u0938\u0947 \u0905\u0927\u093f\u0915 \u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932 \u0927\u093e\u0924\u0941 \u0939\u0948 \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u090f\u0915 \u0906\u0935\u0930\u094d\u0924 \u092e\u0947\u0902 \u092c\u093e\u090f\u0902 \u0938\u0947 \u0926\u093e\u090f\u0902 \u091c\u093e\u0928\u0947 \u092a\u0930 \u0927\u093e\u0924\u0941\u0913\u0902 \u0915\u0940 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0915\u094d\u0930\u093f\u092f\u093e\u0936\u0940\u0932\u0924\u093e \u0915\u092e \u0939\u094b\u0924\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 13-<br \/>\n\u0938\u094d\u0924\u094d\u0930\u093f\u092f\u094b\u0902 \u092e\u0947\u0902 \u0917\u0930\u094d\u092d\u0927\u093e\u0930\u0923 \u0915\u094b \u0930\u094b\u0915\u0928\u0947 \u0915\u0940 \u0915\u094b\u0908 \u0924\u0940\u0928 \u0935\u093f\u0927\u093f\u092f\u093e\u0901 :<br \/>\n(i) \u092f\u093e\u0902\u0924\u094d\u0930\u093f\u0915 \u0905\u0935\u0930\u094b\u0927 \u0935\u093f\u0927\u093f-\u0907\u0938 \u0935\u093f\u0927\u093f \u092e\u0947\u0902 \u092a\u0941\u0930\u0941\u0937 \u0936\u094d\u0936\u094d\u0928\u093f \u0915\u094b \u0922\u0915\u0928\u0947 \u0935\u093e\u0932\u0947 \u0915\u0902\u0921\u094b\u092e \u0924\u0925\u093e \u0938\u094d\u0924\u094d\u0930\u093f\u092f\u093e\u0901 \u0921\u093e\u092f\u093e\u092b\u094d\u0930\u093e\u092e \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u0915\u0930\u0924\u0940 \u0939\u0948\u0902\u0964<br \/>\n(ii) \u0939\u093e\u0930\u094d\u092e\u094b\u0928 \u0935\u093f\u0927\u093f (\u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0935\u093f\u0927\u093f)-\u0907\u0938 \u0935\u093f\u0927\u093f \u092e\u0947\u0902 \u0938\u094d\u0924\u094d\u0930\u093f\u092f\u094b\u0902 \u0915\u094b \u0917\u094b\u0932\u093f\u092f\u093e\u0901 (\u092e\u094c\u0916\u093f\u0915 \u0924\u0925\u093e \u092f\u094c\u0928\u093f\u0915) \u0926\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0902 \u091c\u094b \u0909\u0928\u0915\u0947 \u0939\u093e\u0930\u094d\u092e\u094b\u0928 \u0938\u0902\u0924\u0941\u0932\u0928 \u0915\u094b \u0928\u093f\u092f\u0902\u0924\u094d\u0930\u093f\u0924 \u0915\u0930\u0924\u0940 \u0939\u0948\u0902 \u0924\u093e\u0915\u093f \u0935\u0939 \u0917\u0930\u094d\u092d\u0927\u093e\u0930\u0923 \u0928 \u0915\u0930 \u0938\u0915\u0947\u0902\u0964<br \/>\n(iii) \u0936\u0932\u094d\u092f \u0935\u093f\u0927\u093f-\u0907\u0938 \u0935\u093f\u0927\u093f \u092e\u0947\u0902 \u0936\u0932\u094d\u092f \u091a\u093f\u0915\u093f\u0924\u094d\u0938\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u0941\u0930\u0941\u0937\u094b\u0902 \u0915\u0940 \u0936\u0941\u0915\u094d\u0930\u0935\u093e\u0939\u093f\u0915\u093e\u0913\u0902 \u0915\u094b \u0905\u0935\u0930\u0941\u0926\u094d\u0927 \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u091c\u093f\u0938\u0938\u0947 \u0936\u0941\u0915\u094d\u0930\u093e\u0923\u0941\u0913\u0902 \u0915\u093e \u0938\u094d\u0925\u093e\u0928\u093e\u0902\u0924\u0930\u0923 \u0930\u0941\u0915 \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u0925\u093e \u0938\u094d\u0924\u094d\u0930\u093f\u092f\u094b\u0902 \u0915\u0940 \u0905\u0923\u094d\u0921\u0935\u093e\u0939\u093f\u0928\u0940 \u0915\u094b \u092c\u093e\u0927\u093f\u0924 \u0915\u0930 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948 \u091c\u093f\u0938\u0915\u0947 \u092a\u0930\u093f\u0923\u093e\u092e\u0938\u094d\u0935\u0930\u0942\u092a \u0905\u0902\u0921 \u0917\u0930\u094d\u092d\u093e\u0936\u092f \u0924\u0915 \u0928\u0939\u0940\u0902 \u092a\u0939\u0941\u0901\u091a \u092a\u093e\u0924\u093e\u0964\u0964<br \/>\n\u0939\u093e\u0930\u094d\u092e\u094b\u0928 \u0935\u093f\u0927\u093f \u0915\u093e \u092a\u094d\u0930\u092f\u094b\u0917 \u092a\u0941\u0930\u0941\u0937\u094b\u0902 \u0926\u094d\u0935\u093e\u0930\u093e \u0928\u0939\u0940\u0902 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e\u0964<br \/>\n\u0907\u0928 \u0935\u093f\u0927\u093f\u092f\u094b\u0902 \u0915\u094b \u0905\u092a\u0928\u093e\u0928\u0947 \u0938\u0947 \u092a\u0930\u093f\u0935\u093e\u0930 \u0915\u0947 \u0938\u094d\u0935\u093e\u0938\u094d\u0925\u094d\u092f \u0924\u0925\u093e \u0909\u0928\u094d\u0928\u0924\u093f \u092a\u0930 \u092a\u094d\u0930\u092d\u093e\u0935-\u0917\u0930\u094d\u092d\u0930\u094b\u0927\u0915 \u0935\u093f\u0927\u093f\u092f\u094b\u0902 \u0915\u094b \u0905\u092a\u0928\u093e \u0915\u0930 \u090f\u0915 \u092a\u0930\u093f\u0935\u093e\u0930 \u092c\u091a\u094d\u091a\u094b\u0902 \u0915\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u0915\u094b \u0938\u0940\u092e\u093f\u0924 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u0948 \u091c\u093f\u0938\u0938\u0947 \u0909\u0938\u0915\u0940 \u0906\u0930\u094d\u0925\u093f\u0915 \u0938\u094d\u0925\u093f\u0924\u093f \u0938\u0941\u0926\u0943\u0922\u093c \u0939\u094b \u091c\u093e\u090f\u0917\u0940\u0964 \u0910\u0938\u0947 \u092a\u0930\u093f\u0935\u093e\u0930\u094b\u0902 \u092e\u0947\u0902 \u0915\u092e \u092c\u091a\u094d\u091a\u0947 \u0939\u094b\u0928\u0947 \u0938\u0947 \u092e\u093e\u0924\u093e-\u092a\u093f\u0924\u093e \u0909\u0928\u0915\u094b \u0905\u091a\u094d\u091b\u0940 \u0936\u093f\u0915\u094d\u0937\u093e \u0924\u0925\u093e \u0905\u091a\u094d\u091b\u093e \u092a\u094b\u0937\u0923 \u0926\u0947 \u092a\u093e\u092f\u0947\u0902\u0917\u0947 \u091c\u093f\u0938\u0938\u0947 \u092c\u091a\u094d\u091a\u094b\u0902 \u0915\u093e \u0938\u094d\u0935\u093e\u0938\u094d\u0925\u094d\u092f \u0905\u091a\u094d\u091b\u093e \u0930\u0939\u0947\u0917\u093e\u0964 \u092f\u0939\u0940 \u0928\u0939\u0940\u0902 \u0907\u0928 \u0935\u093f\u0927\u093f\u092f\u094b\u0902 \u0915\u094b \u0905\u092a\u0928\u093e\u0928\u0947 \u0938\u0947 \u092c\u0922\u093c\u0924\u0940 \u091c\u0928\u0938\u0902\u0916\u094d\u092f\u093e \u091c\u0948\u0938\u0940 \u092d\u092f\u093e\u0928\u0915 \u0938\u092e\u0938\u094d\u092f\u093e \u092a\u0930 \u092d\u0940 \u0928\u093f\u092f\u0902\u0924\u094d\u0930\u0923 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 14-<br \/>\n\u092f\u0939 \u0932\u0947\u0902\u0938 \u090f\u0915 \u0905\u0935\u0924\u0932 \u0932\u0947\u0902\u0938 \u0939\u0948\u0964\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i1.wp.com\/farm8.staticflickr.com\/7883\/45774543324_d5f9af9f05_o.png?resize=510%2C250&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 14\" width=\"510\" height=\"250\" data-recalc-dims=\"1\" \/><br \/>\n\u0907\u0938\u0932\u093f\u090f \u0907\u0938 \u0932\u0947\u0902\u0938 \u0915\u0940 \u092b\u094b\u0915\u0938 \u0926\u0942\u0930\u0940 -10 cm \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 15-<br \/>\n(a) \u2018\u092a\u093e\u0928\u0940 \u0915\u094b \u0915\u0948\u0938\u0947 \u092c\u091a\u093e\u092f\u093e \u091c\u093e\u090f&#8217; \u0915\u0947 \u0932\u093f\u092f\u0947 \u091c\u093e\u0917\u0930\u0942\u0915\u0924\u093e \u0932\u093e\u0928\u0947 \u0935\u093e\u0932\u0947 \u0926\u094b \u0909\u092a\u093e\u092f :<br \/>\n(i) \u0939\u092e \u0932\u094b\u0917\u094b\u0902 \u0915\u094b \u092a\u093e\u0928\u0940 \u0915\u094b \u092c\u091a\u093e\u0928\u0947 \u0939\u0947\u0924\u0941 \u0915\u0908 \u0909\u092a\u093e\u092f \u0938\u0941\u091d\u093e \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964 \u091c\u0948\u0938\u0947 \u0928\u0939\u093e\u0928\u0947, \u092c\u0930\u094d\u0924\u0928-\u0915\u092a\u0921\u093c\u0947 \u0906\u0926\u093f \u0915\u094d\u0930\u093f\u092f\u093e\u090f\u0901 \u0938\u092e\u094d\u092a\u0928\u094d\u0928 \u0939\u094b\u0928\u0947 \u0915\u0947 \u092c\u093e\u0926 \u0928\u0932 \u0915\u094b \u092d\u0932\u0940 \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u0947 \u092c\u0902\u0926 \u0915\u0930 \u0926\u0947\u0928\u093e \u091a\u093e\u0939\u093f\u090f \u0924\u0925\u093e \u0928\u0939\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f<br \/>\n\u0936\u0949\u0935\u0930 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\u0905\u092a\u0928\u0947 \u092e\u094c\u0939\u0932\u094d\u0932\u0947 \u0915\u0947 \u092a\u093e\u0930\u094d\u0915 \u092e\u0947\u0902 \u0935\u0930\u094d\u0937\u093e \u090b\u0924\u0941 \u0915\u0947 \u0926\u094c\u0930\u093e\u0928 \u0935\u094d\u092f\u0930\u094d\u0925 \u0939\u094b\u0928\u0947 \u0935\u093e\u0932\u0947 \u0935\u0930\u094d\u0937\u093e \u091c\u0932 \u0915\u093e \u0938\u0902\u0917\u094d\u0930\u0939\u0923 \u0915\u093f\u0938 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0924\u093e \u0939\u0948 \u0924\u093e\u0915\u093f \u0917\u0930\u094d\u092e\u093f\u092f\u094b\u0902 \u092e\u0947\u0902, \u091c\u092c \u092a\u093e\u0928\u0940 \u0915\u0940<br \/>\n\u092c\u0939\u0941\u0924 \u0915\u093f\u0932\u094d\u0932\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948, \u0907\u0938 \u0938\u0902\u0917\u094d\u0930\u0939\u093f\u0924 \u092a\u093e\u0928\u0940 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u093f\u092f\u093e \u091c\u093e \u0938\u0915\u0947\u0964<br \/>\n(b) \u092d\u094c\u092e \u091c\u0932 \u0938\u094d\u0924\u0930 \u0914\u0930 \u0905\u0927\u093f\u0915 \u0928\u0940\u091a\u0947 \u0928\u093e \u091c\u093e\u090f \u0907\u0938\u0915\u0947 \u0932\u093f\u090f \u0939\u092e \u0935\u0930\u094d\u0937\u093e \u091c\u0932 \u0915\u094b \u0905\u092a\u0928\u0947 \u0915\u094d\u0937\u0947\u0924\u094d\u0930 \u0915\u0947 \u092a\u093e\u0930\u094d\u0915 \u0905\u0925\u0935\u093e \u0915\u093f\u0938\u0940 \u0918\u093e\u0938 \u0915\u0947 \u092e\u0948\u0926\u093e\u0928 \u092e\u0947\u0902 \u092c\u0928\u0947 \u092d\u0942\u092e\u093f\u0917\u0924 \u091f\u0948\u0902\u0915\u094b\u0902 \u092e\u0947\u0902 \u0938\u0902\u0917\u094d\u0930\u0939\u093f\u0924 \u0915\u0930 \u0938\u0915\u0924\u0947 \u0939\u0948\u0902\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 16-<br \/>\n(a) \u0926\u0948\u0928\u093f\u0915 \u091c\u0940\u0935\u0928 \u092e\u0947\u0902 pH \u0915\u093e \u092e\u0939\u0924\u094d\u0924\u094d\u0935<br \/>\n(i) \u0939\u092e\u093e\u0930\u0947 \u0936\u0930\u0940\u0930 \u092e\u0947\u0902 \u0906\u092e\u093e\u0936\u092f \u0935 \u091b\u094b\u091f\u0940 \u0906\u0902\u0924 \u092e\u0947\u0902 \u092d\u094b\u091c\u0928 \u0915\u093e \u092a\u093e\u091a\u0928 \u090f\u0915 \u0935\u093f\u0936\u0947\u0937 pH \u092e\u093e\u0928 \u092a\u0930 \u0939\u0940 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u092f\u0926\u093f \u0907\u0928 \u0905\u0902\u0917\u094b\u0902 \u092e\u0947\u0902 pH \u0915\u0947 \u092e\u093e\u0928 \u092e\u0947\u0902 \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u0939\u094b \u091c\u093e\u090f \u0924\u094b \u092d\u094b\u091c\u0928 \u0915\u093e \u092a\u093e\u091a\u0928 \u0920\u0940\u0915 \u092a\u094d\u0930\u0915\u093e\u0930 \u0938\u0947<br \/>\n\u0928\u0939\u0940\u0902 \u0939\u094b \u092a\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(ii) \u092e\u0941\u0916 \u0917\u0941\u0939\u093f\u0915\u093e \u092e\u0947\u0902 \u091c\u092c pH \u0915\u093e \u092e\u093e\u0928 5.5 \u0938\u0947 \u0915\u092e \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u094b \u0926\u093e\u0901\u0924\u094b\u0902 \u0915\u0940 \u090a\u092a\u0930\u0940 \u092a\u0930\u0924 \u0939\u091f\u0928\u0947 \u0932\u0917\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u0926\u093e\u0901\u0924 \u0916\u094b\u0916\u0932\u0947 \u0939\u094b \u091c\u093e\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n(iii) \u0938\u091c\u0940\u0935 \u092a\u094d\u0930\u093e\u0923\u0940 pH \u092e\u093e\u0928 \u0915\u0947 \u092c\u0947\u0939\u0926 \u0915\u092e \u092a\u0930\u093f\u0935\u0930\u094d\u0924\u0928 \u092e\u0947\u0902 \u091c\u0940\u0935\u093f\u0924 \u0930\u0939 \u092a\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u091c\u092c \u0905\u092e\u094d\u0932\u0940\u092f \u0935\u0930\u094d\u0937\u093e \u0915\u093e \u092a\u093e\u0928\u0940, \u092a\u093e\u0928\u0940 \u0915\u0947 \u0938\u094d\u0930\u094b\u0924\u094b\u0902, \u091c\u0948\u0938\u0947 \u0924\u093e\u0932\u093e\u092c, \u0928\u0939\u0930\u0947\u0902, \u0928\u0926\u093f\u092f\u094b\u0902 \u0906\u0926\u093f, \u092e\u0947\u0902 \u092c\u0939 \u091c\u093e\u0924\u093e \u0939\u0948 \u0924\u094b \u092f\u0939 \u091c\u0932\u0940\u092f \u091c\u0940\u0935\u0928<br \/>\n\u0915\u0947 \u0932\u093f\u090f \u0905\u0924\u094d\u092f\u0902\u0924 \u0918\u093e\u0924\u0915 \u0938\u093f\u0926\u094d\u0927 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u092a\u094c\u0927\u094b\u0902 \u0915\u094b \u092d\u0940 \u0905\u092a\u0928\u0940 \u0938\u094d\u0935\u0938\u094d\u0925 \u0935\u0943\u0926\u094d\u0927\u093f \u0915\u0947 \u0932\u093f\u090f \u090f\u0915 \u0935\u093f\u0936\u0947\u0937 pH \u092e\u093e\u0928 \u0915\u0940 \u0906\u0935\u0936\u094d\u092f\u0915\u0924\u093e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964<br \/>\n(b) \u091c\u092c \u0938\u094b\u0921\u093f\u092f\u092e \u0915\u094d\u0932\u094b\u0930\u093e\u0907\u0921 \u0915\u0947 \u091c\u0932\u0940\u092f \u0935\u093f\u0932\u092f\u0928 \u0938\u0947 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0927\u093e\u0930\u093e \u092a\u094d\u0930\u0935\u093e\u0939\u093f\u0924 \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948 \u0924\u094b \u0907\u0938\u0915\u093e \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0905\u092a\u0918\u091f\u0928 \u0939\u094b \u091c\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u090f\u0928\u094b\u0921 \u092a\u0930 Cl<sub>2<\/sub> \u0917\u0948\u0938 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u0935\u093f\u0932\u092f\u0928 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921, \u0915\u094d\u0937\u093e\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964 \u0907\u0938 \u092a\u094d\u0930\u0915\u094d\u0930\u092e \u0915\u094b \u0915\u094d\u0932\u094b\u0930-\u0915\u094d\u0937\u093e\u0930\u0940\u092f \u092a\u094d\u0930\u0915\u094d\u0930\u092e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n2NaCl (aq) + 2H<sub>2<\/sub>O (l) \u2192 2NaOH (aq) + Cl<sub>2<\/sub>(g) + H<sub>2<\/sub>(g)<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 17-<br \/>\n(a) \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0915\u094b\u0936\u093f\u0915\u093e (\u0928\u094d\u092f\u0942\u0930\u0949\u0928) \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0924\u0902\u0924\u094d\u0930 \u0915\u0940 \u0915\u093e\u0930\u094d\u092f\u093e\u0924\u094d\u092e\u0915 \u0907\u0915\u093e\u0908 \u0939\u0948\u0964<br \/>\n\u0915\u093e\u0930\u094d\u092f-\u0915\u093f\u0938\u0940 \u0938\u0902\u0935\u0947\u0926\u0940 \u0917\u094d\u0930\u093e\u0939\u0940 \u0915\u0940 \u0938\u0942\u091a\u0928\u093e \u090f\u0915 \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0915\u094b\u0936\u093f\u0915\u093e \u0915\u0947 \u0926\u094d\u0930\u0941\u092e\u0915\u0943\u0924\u093f\u0915 \u0938\u093f\u0930\u0947 \u0926\u094d\u0935\u093e\u0930\u093e \u0909\u092a\u093e\u0930\u094d\u091c\u093f\u0924 \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948 \u0914\u0930 \u090f\u0915 \u0930\u093e\u0938\u093e\u092f\u0928\u093f\u0915 \u0915\u094d\u0930\u093f\u092f\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u092f\u0939 \u090f\u0915 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0906\u0935\u0947\u0917 \u092a\u0948\u0926\u093e \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 \u092f\u0939 \u0906\u0935\u0947\u0917 \u0926\u094d\u0930\u0941\u092e\u093f\u0915\u093e \u0938\u0947 \u0915\u094b\u0936\u093f\u0915\u093e\u0915\u093e\u092f \u0924\u0915 \u091c\u093e\u0924\u093e \u0939\u0948 \u0914\u0930 \u0924\u092c \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e\u0915\u094d\u0937 (\u090f\u0915\u094d\u0938\u0949\u0928) \u092e\u0947\u0902 \u0939\u094b\u0924\u093e \u0939\u0941\u0906 \u0907\u0938\u0915\u0947 \u0905\u0902\u0924\u093f\u092e \u0938\u093f\u0930\u0947 \u0924\u0915 \u092a\u0939\u0941\u0901\u091a \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e\u0915\u094d\u0937 \u0915\u0947 \u0905\u0902\u0924 \u092e\u0947\u0902 \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0906\u0935\u0947\u0917 \u0915\u0941\u091b \u0930\u0938\u093e\u092f\u0928\u094b\u0902 \u0915\u094b \u0935\u093f\u092e\u094b\u091a\u0928 \u0915\u0930\u093e\u0924\u093e \u0939\u0948\u0964 \u092f\u0947<br \/>\n\u0930\u0938\u093e\u092f\u0928 \u0938\u093f\u0928\u0947\u092a\u094d\u0938 \u0915\u094b \u092a\u093e\u0930 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902 \u0914\u0930 \u0905\u0917\u0932\u0940 \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0915\u094b\u0936\u093f\u0915\u093e \u0915\u0940 \u0926\u0941\u092e\u093f\u0915\u093e \u092e\u0947\u0902 \u0907\u0938\u0940 \u0924\u0930\u0939 \u0915\u094b \u0935\u093f\u0926\u094d\u092f\u0941\u0924 \u0906\u0935\u0947\u0917 \u092a\u094d\u0930\u093e\u0930\u0902\u092d \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964 \u092f\u0939 \u0936\u0930\u0940\u0930 \u092e\u0947\u0902 \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e \u0906\u0935\u0947\u0917 \u0915\u0940 \u092e\u093e\u0924\u094d\u0930\u093e \u0915\u0940 \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u092f\u094b\u091c\u0928\u093e \u0939\u0948\u0964 \u0907\u0938 \u0924\u0930\u0939 \u0915\u093e \u090f\u0915 \u0905\u0902\u0924\u0917\u094d\u0930\u0930\u094d\u0925\u0928 \u0905\u0902\u0924\u0924\u0903 \u0910\u0938\u0947 \u0906\u0935\u0947\u0917\u094b\u0902 \u0915\u094b \u0924\u0902\u0924\u094d\u0930\u093f\u0915\u093e | \u0915\u094b\u0936\u093f\u0915\u093e \u0938\u0947 \u0905\u0928\u094d\u092f \u0915\u094b\u0936\u093f\u0915\u093e\u0913\u0902, \u091c\u0948\u0938\u0947 \u0915\u093f \u092a\u0947\u0936\u0940 \u0915\u094b\u0936\u093f\u0915\u093e\u0913\u0902 \u092f\u093e \u0917\u094d\u0930\u0902\u0925\u093f \u0924\u0915 \u0932\u0947 \u091c\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm5.staticflickr.com\/4887\/45584830675_00c03615b9_o.png?resize=379%2C202&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 17\" width=\"379\" height=\"202\" data-recalc-dims=\"1\" \/><br \/>\n(b) \u092a\u094c\u0927\u094b\u0902 \u092e\u0947\u0902 \u092a\u094d\u0930\u0915\u093e\u0936\u093e\u0928\u0941\u0935\u0930\u094d\u0924\u0928-\u092a\u094c\u0927\u094b\u0902 \u0915\u0940 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0913\u0930 \u0935\u0943\u0926\u094d\u0927\u093f \u0915\u094b \u092a\u094d\u0930\u0915\u093e\u0936\u093e\u0928\u0941\u0935\u0930\u094d\u0924\u0928 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964 \u092a\u094c\u0927\u0947 \u0915\u094b \u0924\u0928\u093e \u092d\u093e\u0917 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0913\u0930 \u0935\u0943\u0926\u094d\u0927\u093f \u0935 \u0917\u0924\u093f \u0915\u0930\u0924\u093e \u0939\u0948 \u0924\u0925\u093e \u0907\u0938\u0915\u0940 \u091c\u0921\u093c\u0947 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0935\u093f\u092a\u0930\u0940\u0924 \u0926\u093f\u0936\u093e \u092e\u0947\u0902 \u0935\u0943\u0926\u094d\u0927\u093f \u0915\u0930\u0924\u0940 \u0939\u0948\u0964 \u0911\u0915\u094d\u0938\u093f\u0928 \u0939\u093e\u0930\u094d\u092e\u094b\u0928 \u0926\u094d\u0935\u093e\u0930\u093e \u0907\u0938 \u0935\u0943\u0926\u094d\u0927\u093f \u0915\u094b \u0928\u093f\u092f\u0902\u0924\u094d\u0930\u093f\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964 \u091b\u093e\u092f\u093e \u0915\u0940 \u0924\u0930\u092b \u0911\u0915\u094d\u0938\u093f\u0928 \u0905\u0927\u093f\u0915 \u092c\u0928\u0924\u093e \u0939\u0948 \u0914\u0930 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0924\u0930\u092b \u0911\u0915\u094d\u0938\u093f\u0928 \u0915\u092e \u092c\u0928\u0924\u093e \u0939\u0948\u0964 \u091c\u093f\u0938\u0938\u0947 \u091b\u093e\u092f\u093e \u0915\u0940 \u0924\u0930\u092b \u0924\u0928\u0947 \u0915\u0940 \u0935\u0943\u0926\u094d\u0927\u093f \u0905\u0927\u093f\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0924\u0930\u092b \u0935\u0943\u0926\u094d\u0927\u093f \u0915\u092e \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938 \u0915\u093e\u0930\u0923 \u092a\u094c\u0927\u0947 \u0915\u093e \u0924\u0928\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f\u0924\u0903 \u092a\u094d\u0930\u0915\u093e\u0936 \u0915\u0940 \u0913\u0930 \u091d\u0941\u0915\u093e \u0939\u0941\u0906 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i1.wp.com\/farm8.staticflickr.com\/7925\/45774543004_017de65d5d_o.png?resize=260%2C170&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 17.1\" width=\"260\" height=\"170\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 18-<br \/>\n(a) \u0938\u094c\u0930 \u0938\u0947\u0932 \u092a\u0948\u0928\u0932-\u091c\u092c \u0915\u093e\u092b\u0940 \u0938\u0902\u0916\u094d\u092f\u093e \u092e\u0947\u0902 \u0938\u094c\u0930 \u0938\u0947\u0932\u094b\u0902 \u0915\u094b \u090f\u0915 \u0938\u093e\u0925 \u0935\u093f\u0936\u0947\u0937 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 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\u092a\u0935\u0928 \u090a\u0930\u094d\u091c\u093e \u092b\u0949\u0930\u094d\u092e \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm5.staticflickr.com\/4867\/45584830525_4a277e90ab_o.png?resize=303%2C228&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 18\" width=\"303\" height=\"228\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 19-<br \/>\n\u0907\u0928 \u092f\u094c\u0917\u093f\u0915\u094b\u0902 \u0915\u0947 \u0905\u0923\u0941\u0913\u0902 \u092e\u0947\u0902 \u0915\u0947\u0935\u0932 \u0915\u093e\u0930\u094d\u092c\u0928 \u0935 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u091c\u0928 \u0915\u0947 \u0939\u0940 \u092a\u0930\u092e\u093e\u0923\u0941 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902 \u0907\u0938\u0932\u093f\u090f \u0907\u0928\u094d\u0939\u0947\u0902 \u0939\u093e\u0907\u0921\u094d\u0930\u094b\u0915\u093e\u0930\u094d\u092c\u0928 \u092f\u094c\u0917\u093f\u0915 \u0915\u0939\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n\u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0938\u0942\u0924\u094d\u0930 :<br \/>\n\u2022 \u090f\u0932\u094d\u0915\u0947\u0928 &#8211; C<sub>n<\/sub>H<sub>2n+2<\/sub><br \/>\n\u2022 \u090f\u0932\u094d\u0915\u0940\u0928 &#8211; C<sub>n<\/sub>H<sub>2n<\/sub><br \/>\n\u2022 \u090f\u0932\u094d\u0915\u093e\u0907\u0928 &#8211; C<sub>n<\/sub>H<sub>2n-2<\/sub><br \/>\n<img loading=\"lazy\" src=\"https:\/\/i2.wp.com\/farm5.staticflickr.com\/4889\/45584830315_1e85b7ec33_o.png?resize=700%2C303&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 19\" width=\"700\" height=\"303\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 20-<br \/>\n(a) (i) \u0905\u0923\u094d\u0921\u093e\u0936\u092f-\u0907\u0938\u092e\u0947\u0902 \u092e\u093e\u0926\u093e \u091c\u0928\u0928 \u0915\u094b\u0936\u093f\u0915\u093e\u090f\u0901 \u092c\u0928\u0924\u0940 \u0939\u0948 \u0924\u0925\u093e \u0926\u094b \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u0939\u093e\u0930\u094d\u092e\u094b\u0928 \u0938\u094d\u0930\u093e\u0935\u093f\u0924 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902-\u090f\u0938\u094d\u091f\u094d\u0930\u094b\u091c\u0928 \u0924\u092d\u093e \u092a\u094d\u0930\u094b\u091c\u0948\u0938\u094d\u091f\u0930\u0949\u0928\u0964<br \/>\n(ii) \u0917\u0930\u094d\u092d\u093e\u0936\u092f-\u092e\u093e\u0926\u093e \u0905\u0923\u094d\u0921\u093e\u0923\u0941 \u0915\u0947 \u0928\u093f\u0937\u0947\u091a\u0928 \u0915\u0947 \u092c\u093e\u0926 \u0935\u0939 \u0917\u0930\u094d\u092d \u092e\u0947\u0902 \u092d\u094d\u0930\u0942\u0923 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u0935\u093f\u0915\u0938\u093f\u0924 \u0939\u094b\u0928\u0947 \u0932\u0917\u0924\u093e \u0939\u0948\u0964 \u092f\u0939 \u092d\u094d\u0930\u0942\u0923 \u092b\u093f\u0930 \u0917\u0930\u094d\u092d\u093e\u0936\u092f \u0915\u0947 \u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u092a\u0930 \u0938\u094d\u0925\u093e\u092a\u093f\u0924 \u0939\u094b\u0915\u0930 \u092a\u0942\u0930\u094d\u0923 \u092c\u091a\u094d\u091a\u0947 \u092e\u0947\u0902 \u0935\u093f\u0915\u0938\u093f\u0924 \u0939\u094b\u0924\u093e \u0939\u0948\u0964<br \/>\n(iii) \u0905\u0923\u094d\u0921\u0935\u093e\u0939\u093f\u0915\u093e-\u0907\u0938 \u092d\u093e\u0917 \u092e\u0947\u0902 \u0928\u0930 \u0936\u0941\u0915\u094d\u0930\u093e\u0923\u0941 \u0926\u094d\u0935\u093e\u0930\u093e \u092e\u093e\u0926\u093e \u0905\u0923\u094d\u0921\u093e\u0923\u0941 \u0915\u093e \u0928\u093f\u0937\u0947\u091a\u0928 \u0939\u094b\u0924\u093e \u0939\u0948 \u0924\u0925\u093e \u0928\u093f\u0937\u0947\u091a\u093f\u0924 \u0905\u0923\u094d\u0921\u093e\u0923\u0941\u0913\u0902 \u0915\u094b \u0917\u0930\u094d\u092d\u093e\u0936\u092f \u0924\u0915 \u0905\u0923\u094d\u0921\u0935\u093e\u0939\u093f\u0915\u093e \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u0939\u0941\u0901\u091a\u093e\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(b) \u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u0915\u0940 \u0938\u0902\u0930\u091a\u0928\u093e-\u092f\u0939 \u090f\u0915 \u0924\u0936\u094d\u0924\u0930\u0940\u0928\u0941\u092e\u093e \u0938\u0930\u0902\u091a\u0928\u093e \u0939\u0948 \u091c\u094b \u0917\u0930\u094d\u092d\u093e\u0936\u092f \u0915\u0940 \u092d\u093f\u0924\u094d\u0924\u093f \u092e\u0947\u0902 \u0927\u0902\u0938\u0940 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 \u0907\u0938\u092e\u0947\u0902 \u092d\u094d\u0930\u0942\u0923 \u0915\u0940 \u0924\u0930\u092b \u0915\u0947 \u0909\u0924\u094d\u0924\u0915 \u092e\u0947\u0902 \u0935\u093f\u0936\u0947\u0937 \u092a\u094d\u0930\u0915\u093e\u0930 \u0915\u0947 \u092a\u094d\u0930\u0935\u0930\u094d\u0927 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902\u0964 \u092e\u093e\u0902 \u0915\u0947 \u0909\u0924\u094d\u0924\u0915\u094b\u0902 \u092e\u0947\u0902 \u0930\u093f\u0915\u094d\u0924 \u0938\u094d\u0925\u093e\u0928 \u0939\u094b\u0924\u0947 \u0939\u0948\u0902 \u091c\u094b \u092a\u094d\u0930\u0935\u0930\u094d\u0927 \u0915\u094b \u0906\u091a\u094d\u091b\u093e\u0926\u093f\u0924 \u0915\u0930\u0924\u0947 \u0939\u0948\u0902\u0964<br \/>\n\u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u0915\u0947 \u0915\u093e\u0930\u094d\u092f-\u092d\u094d\u0930\u0942\u0923 \u0915\u094b \u0917\u094d\u0932\u0942\u0915\u094b\u091c, \u0911\u0915\u094d\u0938\u0940\u091c\u0928 \u090f\u0935\u0902 \u0905\u0928\u094d\u092f \u092a\u0926\u093e\u0930\u094d\u0925 \u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u0938\u0947 \u092e\u093e\u0901 \u0915\u0947 \u0930\u0915\u094d\u0924 \u0926\u094d\u0935\u093e\u0930\u093e \u092a\u094d\u0930\u0926\u093e\u0928 \u0915\u093f\u092f\u0947 \u091c\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u0935\u093f\u0915\u093e\u0938\u0936\u0940\u0932 \u092d\u094d\u0930\u0942\u0923 \u0926\u094d\u0935\u093e\u0930\u093e \u091c\u094b \u0905\u092a\u0936\u093f\u0937\u094d\u091f \u092a\u0926\u093e\u0930\u094d\u0925 \u0909\u0924\u094d\u092a\u0928\u094d\u0928 \u0915\u093f\u090f \u091c\u093e\u0924\u0947 \u0939\u0948\u0902 \u0909\u0928\u0915\u094b \u092a\u094d\u0932\u0947\u0938\u0947\u0902\u091f\u093e \u0915\u0947 \u092e\u093e\u0927\u094d\u092f\u092e \u0938\u0947 \u092e\u093e\u0902 \u0915\u0947 \u092e\u0942\u0924\u094d\u0930 \u0926\u094d\u0935\u093e\u0930\u093e \u092c\u093e\u0939\u0930 \u0928\u093f\u0915\u093e\u0932 \u0926\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 21-<br \/>\n(a) \u092f\u0947 \u0926\u0930\u094d\u092a\u0923 \u0909\u0924\u0932 \u0926\u0930\u094d\u092a\u0923 \u0939\u0948\u0964<br \/>\n\u0915\u093f\u0930\u0923 \u0906\u0930\u0947\u0916 :<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm5.staticflickr.com\/4837\/32625294108_a447560f1c_o.png?resize=270%2C169&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 21\" width=\"270\" height=\"169\" data-recalc-dims=\"1\" \/><br \/>\n\u0907\u0938\u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0917\u093e\u0921\u093c\u093f\u092f\u094b\u0902 \u092e\u0947\u0902 \u092a\u0940\u091b\u0947 \u0926\u0947\u0916\u0928\u0947 \u0935\u093e\u0932\u0947 \u0926\u0930\u094d\u092a\u0923 (rear view mirror) \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902, \u090f\u0935\u0902 \u0926\u0941\u0915\u093e\u0928\u094b\u0902 \u0924\u0925\u093e \u092b\u0948\u0915\u094d\u091f\u0930\u093f\u092f\u094b\u0902 \u092e\u0947\u0902 \u0938\u0941\u0930\u0915\u094d\u0937\u093e \u0926\u0930\u094d\u092a\u0923 \u0915\u0947 \u0930\u0942\u092a \u092e\u0947\u0902 \u0909\u092a\u092f\u094b\u0917 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(b) \u0917\u094b\u0932\u0940\u092f \u0926\u0930\u094d\u092a\u0923 \u0915\u093e \u092a\u0930\u093e\u0935\u0930\u094d\u0924\u0915 \u092a\u0943\u0937\u094d\u0920 \u091c\u093f\u0938 \u0917\u094b\u0932\u0947 \u0915\u093e \u092d\u093e\u0917 \u0939\u0948 \u0909\u0938\u0915\u0940 \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0926\u0930\u094d\u092a\u0923 \u0915\u0940 \u0935\u0915\u094d\u0930\u0924\u093e \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u0939\u0932\u093e\u0924\u0940 \u0939\u0948\u0964 \u0935\u0915\u094d\u0930\u0924\u093e \u0924\u094d\u0930\u093f\u091c\u094d\u092f\u093e \u0915\u094b R \u0938\u0947 \u0926\u0930\u094d\u0936\u093e\u0924\u0947 \u0939\u0948\u0902\u0964 \u092f\u0939 \u0926\u0930\u094d\u092a\u0923 \u0915\u0947 PC \u0926\u0942\u0930\u0940 \u0915\u0947 \u092c\u0930\u093e\u092c\u0930 \u0939\u094b\u0924\u0940 \u0939\u0948\u0964 R = 24 cm, f = ?<br \/>\nf = \\(\\frac { R }{ 2 }\\) = \\(\\frac { 24 }{ 2 }\\) = 12 cm<br \/>\nf = +12 cm (+) \u0927\u0928 \u091a\u093f\u0928\u094d\u0939 \u092f\u0939 \u0926\u0930\u094d\u0936\u093e\u0924\u093e \u0926\u0930\u094d\u092a\u0923 \u0909\u0924\u0932 \u0926\u0930\u094d\u092a\u0923 \u0939\u0948\u0964<br \/>\n\u0905\u0925\u0935\u093e<br \/>\n(a) \u0928\u093f\u0915\u091f \u0926\u0943\u0937\u094d\u091f\u093f \u0926\u094b\u0937 \u0915\u0947 \u0926\u094b \u0915\u093e\u0930\u0923 :<br \/>\n\u2022 \u0909\u0938\u0915\u0947 \u0928\u0947\u0924\u094d\u0930\u0917\u094b\u0932\u0915\u094b\u0902 \u0915\u093e \u0906\u0915\u093e\u0930 \u092c\u0922\u093c \u0917\u092f\u093e \u0939\u0948\u0964<br \/>\n\u2022 \u0909\u0938\u0915\u0940 \u0906\u0902\u0916 \u0915\u0947 \u0932\u0947\u0902\u0938 \u0915\u0940 \u0935\u0915\u094d\u0930\u0924\u093e \u0938\u093e\u092e\u093e\u0928\u094d\u092f \u0932\u0947\u0902\u0938 \u0915\u0940 \u0935\u0915\u094d\u0930\u0924\u093e \u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u094b \u0917\u0908 \u0939\u0948\u0964<br \/>\n(i) \u0915\u093f\u0930\u0923 \u0906\u0930\u0947\u0916 :<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i1.wp.com\/farm5.staticflickr.com\/4822\/46498101121_51840df6a2_o.png?resize=303%2C158&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 21.1\" width=\"303\" height=\"158\" data-recalc-dims=\"1\" \/><br \/>\n(ii) \u0907\u0938 \u0926\u094b\u0937 \u0915\u094b \u0926\u0942\u0930 \u0915\u0930\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0905\u0935\u0924\u0932 \u0932\u0947\u0902\u0938 \u0915\u093e \u0909\u092a\u092f\u094b\u0917 \u0915\u0930\u0928\u093e \u092a\u0921\u093c\u0924\u093e \u0939\u0948\u0964<br \/>\n\u0928\u093f\u0915\u091f \u0926\u0943\u0937\u094d\u091f\u093f \u0926\u094b\u0937 \u0915\u0947 \u0938\u0902\u0936\u094b\u0927\u0928 \u0915\u0947 \u0932\u093f\u090f \u0915\u093f\u0930\u0923 \u0906\u0930\u0947\u0916 :<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm5.staticflickr.com\/4883\/32625294158_72e0237ec0_o.png?resize=402%2C180&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 21.2\" width=\"402\" height=\"180\" data-recalc-dims=\"1\" \/><br \/>\n(b) f = -5 m (\u0905\u0935\u0924\u0932 \u0932\u0947\u0902\u0938 \u0915\u0940 \u0964 \u090b\u0923\u093e\u0924\u094d\u092e\u0915 \u0939\u094b\u0924\u0940 \u0939\u0948); P = ?<br \/>\nP = \\(\\frac { 1 }{ f }\\) = \\(\\frac { 1 }{ -5 }\\) = -0.2D<br \/>\n\u0920\u0940\u0915 \u0915\u0930\u0928\u0947 \u0935\u093e\u0932\u0947 \u0905\u0935\u0924\u0932 \u0932\u0947\u0902\u0938 \u0915\u0940 \u0936\u0915\u094d\u0924\u093f -0.2 D (\u0921\u093e\u092f\u092a\u091f\u0930) \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 22-<br \/>\n(a) \u0926\u094b \u092c\u093f\u0902\u0926\u0941\u0913\u0902 \u0915\u0947 \u092c\u0940\u091a \u0915\u093f\u0938\u0940 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u092e \u0938\u0947 \u0915\u092e \u0935\u093f\u092d\u0935\u093e\u0902\u0924\u0930 \u092e\u093e\u092a\u0928\u0947 \u0915\u0940 \u0915\u094d\u0937\u092e\u0924\u093e \u0915\u094b \u0909\u0938\u0915\u0940 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u092a \u0915\u0939\u0924\u0947 \u0939\u0948\u0964<br \/>\n(b) \u0926\u094b \u092c\u093f\u0902\u0926\u0941\u0913\u0902 \u0915\u0947 \u092c\u0940\u091a \u092e\u093e\u092a = 0.5 &#8211; 0.0 = 0.5V<br \/>\n\u0907\u0928 \u0926\u094b \u092c\u093f\u0902\u0926\u0941\u0913\u0902 \u0915\u0947 \u092c\u0940\u091a \u092d\u093e\u0917 = 20<br \/>\n\u2234 \u0935\u094b\u0932\u094d\u091f\u092e\u0940\u091f\u0930 \u0915\u0940 \u0928\u094d\u092f\u0942\u0928\u0924\u092e \u092e\u093e\u092a = \\(\\frac { 0.5 }{ 20 }\\) = \\(\\frac { 5 }{ 200 }\\) = 0.025 \u0935\u094b\u0932\u094d\u091f<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 23-<br \/>\n(a) \u090f\u0915 \u0921\u094d\u0930\u0940\u092a\u0930 \u0915\u0940 \u0938\u0939\u093e\u092f\u0924\u093e \u0938\u0947 \u0926\u093f\u090f \u0917\u090f \u0935\u093f\u0932\u092f\u0928 \u0915\u0940 \u090f\u0915 \u092c\u0942\u0902\u0926 pH \u092a\u0947\u092a\u0930 \u0915\u0940 \u0915\u0924\u0930\u0928 \u092a\u0930 \u0921\u093e\u0932\u0928\u0947 \u092a\u0930 \u091c\u094b \u0930\u0902\u0917 pH \u092a\u0947\u092a\u0930 \u0915\u0940 \u0915\u0924\u0930\u0928 \u092a\u0930 \u092a\u094d\u0930\u093e\u092a\u094d\u0924 \u0939\u094b\u0924\u093e \u0939\u0948 \u0909\u0938 \u0930\u0902\u0917 \u0915\u093e pH \u091a\u093e\u0930\u094d\u091f \u0915\u0947 \u0930\u0902\u0917 \u0938\u0947 \u092e\u093f\u0932\u093e\u0928 \u0915\u0930 \u0915\u0947 \u0909\u0938 \u0935\u093f\u0932\u092f\u0928 \u0915\u093e pH \u092e\u093e\u0928 \u091c\u094d\u091e\u093e\u0924 \u0915\u093f\u092f\u093e \u091c\u093e\u0924\u093e \u0939\u0948\u0964<br \/>\n(b) (i) \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921 \u0935\u093f\u0932\u092f\u0928 [NaOH (aq)] \u0915\u093e \u092e\u093e\u0928 pH \u092e\u093e\u0928 7 \u0938\u0947 \u0905\u0927\u093f\u0915 \u0939\u094b\u0917\u093e \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921 \u0915\u094d\u0937\u093e\u0930\u0940\u092f \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u093e \u0939\u0948\u0964\u0964<br \/>\n(ii) \u0924\u0928\u0941 HCI \u0935\u093f\u0932\u092f\u0928 \u0915\u093e pH \u092e\u093e\u0928 7 \u0938\u0947 \u0915\u092e \u0939\u094b\u0917\u093e \u0915\u094d\u092f\u094b\u0902\u0915\u093f \u0924\u0928\u0941 HCI \u0905\u092e\u094d\u0932\u0940\u092f \u092a\u094d\u0930\u0915\u0943\u0924\u093f \u0915\u093e \u0939\u0948\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 24-<br \/>\n\u0905\u0938\u094d\u0925\u093e\u0908 \u0938\u094d\u0932\u0949\u0907\u0921 \u092c\u0928\u093e\u0924\u0947 \u0938\u092e\u092f \u0915\u0940 \u091c\u093e\u0928\u0947 \u0935\u093e\u0932\u0940 \u0938\u093e\u0935\u0927\u093e\u0928\u093f\u092f\u093e\u0901 :<br \/>\n(i) \u091d\u093f\u0932\u094d\u0932\u0940 \u0939\u092e\u0947\u0936\u093e \u0924\u093e\u091c\u0940 \u0924\u094b\u0921\u093c\u0940 \u0917\u0908 \u092a\u0924\u094d\u0924\u0940 \u0938\u0947 \u0932\u0947\u0928\u0940 \u091a\u093e\u0939\u093f\u090f\u0964<br \/>\n(ii) \u091d\u093f\u0932\u094d\u0932\u0940 \u0915\u094b \u0939\u092e\u0947\u0936\u093e \u0938\u094d\u0932\u093e\u0907\u0921 \u0915\u0947 \u092e\u0927\u094d\u092f \u092d\u093e\u0917 \u092e\u0947\u0902 \u0930\u0916\u0928\u093e \u091a\u093e\u0939\u093f\u090f\u0964<br \/>\n(iii) \u092a\u0924\u094d\u0924\u0940 \u0915\u0940 \u091d\u093f\u0932\u094d\u0932\u0940 \u0938\u0942\u0916\u0928\u0940 \u0928\u0939\u0940\u0902 \u091a\u093e\u0939\u093f\u090f\u0964<br \/>\n(iv) \u091d\u093f\u0932\u094d\u0932\u0940 \u092a\u0930 \u0915\u0935\u0930 \u0938\u094d\u0932\u093f\u092a \u0927\u0940\u0930\u0947-\u0927\u0940\u0930\u0947 \u0906\u0930\u093e\u092e \u0938\u0947 \u0930\u0916\u0928\u0940 \u091a\u093e\u0939\u093f\u090f \u0924\u093e\u0915\u093f \u0939\u0935\u093e \u0915\u0947 \u092c\u0941\u0932\u092c\u0941\u0932\u0947 \u092c\u0940\u091a \u092e\u0947\u0902 \u0928 \u0930\u0939 \u091c\u093e\u090f\u0902\u0964<br \/>\n(v) \u0938\u094d\u0932\u093e\u0907\u0921 \u0915\u094b \u0939\u092e\u0947\u0936\u093e \u0915\u093f\u0928\u093e\u0930\u0947 \u0938\u0947 \u092a\u0915\u0921\u093c\u0928\u093e \u091a\u093e\u0939\u093f\u090f \u0924\u093e\u0915\u093f \u0935\u0939 \u0917\u0902\u0926\u0940 \u0928 \u0939\u094b \u091c\u093e\u090f\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 25-<br \/>\n\u0938\u093e\u092c\u0941\u0928 \u092c\u0928\u093e\u0928\u0947 \u0915\u0947 \u0932\u093f\u090f \u0906\u0935\u0936\u094d\u092f\u0915 \u0930\u0938\u093e\u092f\u0928-\u0915\u094b\u0908 \u090f\u0915 \u0935\u0928\u0938\u094d\u092a\u0924\u093f \u0924\u0947\u0932, \u0938\u093e\u0902\u0926\u094d\u0930 \u0938\u094b\u0921\u093f\u092f\u092e \u0939\u093e\u0907\u0921\u094d\u0930\u0949\u0915\u094d\u0938\u093e\u0907\u0921 \u0935\u093f\u0932\u092f\u0928 \u0935\u0947 \u0938\u093e\u0927\u093e\u0930\u0923 \u0928\u092e\u0915\u0964<br \/>\n\u0938\u093e\u092c\u0941\u0928 \u092c\u0928\u0928\u0947 \u0915\u0947 \u092a\u0936\u094d\u091a\u093e\u0924\u094d \u0938\u093e\u092c\u0941\u0928 \u0915\u0940 \u092a\u0939\u091a\u093e\u0928 \u0932\u093f\u091f\u092e\u0938 \u092a\u0924\u094d\u0930 \u0926\u094d\u0935\u093e\u0930\u093e \u0915\u0940 \u091c\u093e\u0924\u0940 \u0939\u0948\u0964 \u0938\u093e\u092c\u0941\u0928 \u0932\u093e\u0932 \u0932\u093f\u091f\u092e\u0938 \u092a\u0924\u094d\u0930 \u0915\u094b \u0928\u0940\u0932\u093e \u0915\u0930 \u0926\u0947\u0924\u093e \u0939\u0948 \u0907\u0938\u0938\u0947 \u092a\u0924\u093e \u091a\u0932\u0924\u093e \u0939\u0948 \u0915\u093f \u0938\u093e\u092c\u0941\u0928 \u090f\u0915 \u0915\u094d\u0937\u093e\u0930\u0940\u092f \u092a\u0926\u093e\u0930\u094d\u0925 \u0939\u0948\u0964\u0964<\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 26-<br \/>\n<img loading=\"lazy\" src=\"https:\/\/i0.wp.com\/farm5.staticflickr.com\/4880\/46498100921_a1a0b10db7_o.png?resize=582%2C207&#038;ssl=1\" alt=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 26\" width=\"582\" height=\"207\" data-recalc-dims=\"1\" \/><\/p>\n<p>\u0909\u0924\u094d\u0924\u0930 27-<br \/>\n(a) \u0935\u0939 \u0932\u0947\u0902\u0938 \u0915\u094b \u0939\u0930 \u092c\u093e\u0930 \u092a\u0930\u094d\u0926\u0947 \u0938\u0947 \u0926\u0942\u0930 \u0915\u0930\u0924\u093e \u091c\u093e\u090f\u0917\u093e\u0964<br \/>\n(b) \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0906\u0915\u093e\u0930 \u092e\u0947\u0902 \u091b\u094b\u091f\u0947 \u0938\u0947 \u092c\u0921\u093c\u093e \u0939\u094b\u0924\u093e \u091c\u093e\u090f\u0917\u093e\u0964<br \/>\n(c) \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0915\u0940 \u091a\u092e\u0915 \u092b\u0940\u0915\u0940 \u092a\u0921\u093c\u0924\u0940 \u091c\u093e\u090f\u0917\u0940\u0964<br \/>\n(d) \u0905\u092c \u092a\u0930\u0926\u0947 \u092a\u0930 \u091c\u094d\u0935\u093e\u0932\u093e \u0915\u093e \u092a\u094d\u0930\u0924\u093f\u092c\u093f\u092e\u094d\u092c \u0928\u0939\u0940\u0902 \u092c\u0928\u0947\u0917\u093e\u0964<\/p>\n<p>We hope the CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 help you. If you have any query regarding CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2, drop a comment below and we will get back to you at the earliest.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 is part of CBSE Sample Papers for Class 10 Science in Hindi Medium. Here we have given CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 Board CBSE &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/ncertsolutions.guru\/cbse-sample-papers-for-class-10-science-hindi-paper-2\/\"> <span class=\"screen-reader-text\">CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2<\/span> Read More &raquo;<\/a><\/p>\n","protected":false},"author":5,"featured_media":7870,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[29,2],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v16.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 - NCERT Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ncertsolutions.guru\/cbse-sample-papers-for-class-10-science-hindi-paper-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 - NCERT Solutions\" \/>\n<meta property=\"og:description\" content=\"CBSE Sample Papers for Class 10 Science in Hindi Medium Paper 2 is part of CBSE Sample Papers for Class 10 Science in Hindi Medium. 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