{"id":19170,"date":"2021-02-23T09:46:28","date_gmt":"2021-02-23T04:16:28","guid":{"rendered":"https:\/\/ncertsolutions.guru\/?p=19170"},"modified":"2021-02-23T09:46:28","modified_gmt":"2021-02-23T04:16:28","slug":"mcq-questions-for-class-12-chemistry-chapter-12","status":"publish","type":"post","link":"https:\/\/ncertsolutions.guru\/mcq-questions-for-class-12-chemistry-chapter-12\/","title":{"rendered":"MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers"},"content":{"rendered":"

Students are advised to practice the NCERT MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers Pdf free download is available here. MCQ Questions for Class 12 Chemistry with Answers<\/a> are prepared as per the Latest Exam Pattern. Students can solve these Aldehydes, Ketones and Carboxylic Acids Class 12 MCQs Questions with Answers and assess their preparation level.<\/p>\n

Aldehydes, Ketones and Carboxylic Acids Class 12 MCQs Questions with Answers<\/h2>\n

Solving the Aldehydes, Ketones and Carboxylic Acids Multiple Choice Questions of Class 12 Chemistry Chapter 12 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Aldehydes, Ketones and Carboxylic Acids Class 12 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 12 Chemistry Class 12 and cross-check your answers during preparation.<\/p>\n

Question 1.
\nAddition of water to alkynes occurs in acidic medium and in the presence of Hg2+<\/sup> ions as a catalyst. Which of the following products will be formed on addition of water to but-1 -yne under these conditions?
\n\"MCQ<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer:
\n\"MCQ<\/p>\n<\/details>\n

\n

Question 2.
\nWhich of the following compounds is most reactive towards nucleophilic addition reactions?
\n\"MCQ<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer:
\n\"MCQ<\/p>\n<\/details>\n

\n

Question 3.
\nThe correct order of increasing acidic strength is
\n(a) Phenol < Ethanol < Chloroacetic acid < Acetic acid
\n(b) Ethanol < Phenol < Chloroacetic acid < Acetic acid
\n(c) Ethanol < Phenol < Acetic acid < Chloroacetic acid
\n(d) Chloroacetic acid < Acetic acid < Phenol < Ethanol<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Ethanol < Phenol < Acetic acid < Chloroacetic acid<\/p>\n<\/details>\n

\n

Question 4.
\nCompound \"MCQ can be prepared by the reaction of
\n(a) Phenol and benzoic acid in the presence of NaOH
\n(b) Phenol and benzoyl chloride in the presence of pyridine
\n(c) Phenol and benzoyl chloride in the presence of ZnCl2<\/sub>
\n(d) Phenol and benzaldehyde in the presence of palladium<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Phenol and benzoyl chloride in the presence of pyridine<\/p>\n<\/details>\n

\n

Question 5.
\nThe reagent which does not react with both, acetone and benzaldehyde.
\n(a) Sodium hydrogensulphite
\n(b) Phenyl hydrazine
\n(c) Fehling\u2019s solution
\n(d) Grignard reagent<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Fehling\u2019s solution<\/p>\n<\/details>\n

\n

Question 6.
\nCannizzaro\u2019s reaction is not given by
\n\"MCQ
\n(c) HCHO
\n(d) CH3<\/sub>CHO<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) CH3<\/sub>CHO<\/p>\n<\/details>\n

\n

Question 7.
\nWhich product is formed when the compound \"MCQ is treated with concentrated aqueous KOH solution?
\n\"MCQ<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer:
\n\"MCQ<\/p>\n<\/details>\n

\n

Question 8.
\n\"MCQ
\nStructure of \u2018A\u2019 and type of isomerism in the above reaction are respectively.
\n(a) Prop-1-en-2-ol, metamerism
\n(b) Prop-1 -en-1 -ol, tautomerism
\n(c) Prop-2-en-2-ol, geometrical isomerism
\n(d) Prop-1-en-2-ol, tautomerism<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) Prop-1-en-2-ol, tautomerism<\/p>\n<\/details>\n

\n

Question 9.
\nCompounds A and C in the following reaction are
\n\"MCQ
\n(a) identical
\n(b) positional isomers
\n(c) functional isomers
\n(d) optical isomers<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) positional isomers<\/p>\n<\/details>\n

\n

Question 10.
\nWhich is the most suitable reagent for the following conversion?
\n\"MCQ
\n(a) Tollen\u2019s reagent
\n(b) Benzoyl peroxide
\n(c) l2<\/sub> and NaOH solution
\n(d) Sn and NaOH solution<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) l2<\/sub> and NaOH solution<\/p>\n<\/details>\n

\n

Question 11.
\nWhich of the following compounds wilt give butanone on oxidation with alkaline KMnO4<\/sub> solution?
\n(a) Butan-1-ol
\n(b) Butan-2-ol
\n(c) Both of these
\n(d) None of these<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Butan-2-ol<\/p>\n<\/details>\n

\n

Question 12.
\nIn Clemmensen Reduction carbonyl compound is treated with
\n(a) Zinc amalgam + HCl
\n(b) Sodium amalgam + HCl
\n(c) Zinc amalgam + nitric add
\n(d) Sodium amalgam + HNO3<\/sub><\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) Zinc amalgam + HCl<\/p>\n<\/details>\n

\n

Assertion and Reason Type Questions<\/span><\/p>\n

The questions given below consist of an assertion and a reason. Use the following key to choose the appropriate answer.
\n(a) Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).
\n(b) Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).
\n(c) Assertion (A) is correct, Reason (R) is wrong statement.
\n(d) Assertion (A) is wrong, but Reason (R) is correct statement.<\/p>\n

Question 13.
\nAssertion: Formaldehyde is a planar molecule.
\nReason: It contains sp\u00b2 hybridised carbon atom.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (a) Both Assertion (A) and Reason (R) are correct statements, and Reason (R) is the correct explanation of the Assertion (A).<\/p>\n<\/details>\n

\n

Question 14.
\nAssertion: Compounds containing -CHO group are easily oxidised to corresponding carboxylic acids.
\nReason: Carboxylic acids can be reduced to alcohols by treatment with LiAlH4<\/sub>.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (b) Both Assertion (A) and Reason (R) are correct statements, but Reason (R) is not the correct explanation of the Assertion (A).<\/p>\n<\/details>\n

\n

Question 15.
\nAssertion: The a-hydrogen atom in carbonyl compounds is less acidic.
\nReason: The anion formed after the loss of \u03b1-hydrogen atom is resonance stabilised.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) Assertion (A) is wrong, but Reason (R) is correct statement.<\/p>\n<\/details>\n

\n

Question 16.
\nAssertion: Aromatic aldehydes and formaldehyde undergo Cannizzaro reaction.
\nReason: Aromatic aldehydes are almost as reactive as formaldehyde.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (c) Assertion (A) is correct, Reason (R) is wrong statement.<\/p>\n<\/details>\n

\n

Question 17.
\nAssertion: Aldehydes and ketones, both react with Tollen\u2019s reagent to form silver mirror.
\nReason: Both, aldehydes and ketones contain a carbonyl group.<\/p>\n

\nAnswer<\/span><\/summary>\n

Answer: (d) Assertion (A) is wrong, but Reason (R) is correct statement.<\/p>\n<\/details>\n

\n

Hope the information shared regarding the NCERT MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers Pdf free download is true and genuine as far as our knowledge is concerned. If you feel any information regarding CBSE Class 12 Chemistry Aldehydes, Ketones and Carboxylic Acids MCQs Multiple Choice Questions with Answers is missing do reach us and we will look into it and add it accordingly.<\/p>\n","protected":false},"excerpt":{"rendered":"

Students are advised to practice the NCERT MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers Pdf free download is available here. MCQ Questions for Class 12 Chemistry with Answers are prepared as per the Latest Exam Pattern. Students can solve these Aldehydes, Ketones and Carboxylic Acids Class 12 …<\/p>\n

MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers<\/span> Read More »<\/a><\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"spay_email":""},"categories":[35],"tags":[],"yoast_head":"\nMCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers - 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\/mcq-questions-for-class-12-chemistry-chapter-12\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers - NCERT Solutions\" \/>\n<meta property=\"og:description\" content=\"Students are advised to practice the NCERT MCQ Questions for Class 12 Chemistry Chapter 12 Aldehydes, Ketones and Carboxylic Acids with Answers Pdf free download is available here. 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