# MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers with Answers

Students can access the NCERT MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers with Answers Pdf free download aids in your exam preparation and you can get a good hold of the chapter. Use MCQ Questions for Class 8 Maths with Answers during preparation and score maximum marks in the exam. Students can download the Exponents and Powers Class 8 MCQs Questions with Answers from here and test their problem-solving skills. Clear all the fundamentals and prepare thoroughly for the exam taking help from Class 8 Maths Chapter 12 Exponents and Powers Objective Questions.

## Exponents and Powers Class 8 MCQs Questions with Answers

Students are advised to solve the Exponents and Powers Multiple Choice Questions of Class 8 Maths to know different concepts. Practicing the MCQ Questions on Exponents and Powers Class 8 with answers will boost your confidence thereby helping you score well in the exam.

Explore numerous MCQ Questions of Exponents and Powers Class 8 with answers provided with detailed solutions by looking below.

Question 1.
The value of 72 is
(a) 7
(b) 49
(c) 2
(d) 14

Question 2.
16 is the multiplicative inverse of
(a) 2-4
(b) 28
(c) 82
(d) 24

Question 3.
In 102 the base is
(a) 1
(b) 0
(c) 10
(d) 100

Question 4.
Charge of an electron is 0.000,000,000,000,000,000,16 coulomb and in exponential form it can be written as
(a) 16 × 10-18 coulomb
(b) 1.6 × 10-21 coulomb
(c) 1.6 × 10-19 coulomb
(d) 16 × 10-21 coulomb

Answer: (c) 1.6 × 10-19 coulomb

Question 5.
Evaluate the exponential expression (−n)4× (−n)2, for n = 5.
(a) 25
(b) 15625
(c) 3125
(d) 625

Question 6.
Value of (30 + 20) × 50 is
(a) 1
(b) 25
(c) 2
(d) 0

Question 7.
When we have to add numbers in standard form, we convert them into numbers with the ________ exponents.
(a) same
(b) different
(c) not equal
(d) None of these

Question 8.
Fill in the blank am × an = a …….. where m and n are natural numbers:-
(a) mn
(b) m + n
(c) m – n
(d) $$\frac { m }{ n }$$

Question 9.
Very small numbers can be expressed in standard form using __________ exponents.
(a) equal
(b) negative
(c) positive
(d) none of these

Question 10.
Multiplicative inverse of 7-2 is _________
(a) 49
(b) 5
(c) 7
(d) -14

Question 11.
The value of 10000 is
(a) 0
(b) 1000
(c) 1
(d) None of these

Question 12.
The standard form of 9030000000 is given by
(a) 9.03 × 109
(b) 90.3 × 107
(c) 903 × 106
(d) 9.03 × 10-9

Question 13.
The multiplicative inverse of 2-3 is
(a) 2
(b) 3
(c) 3
(d) 23

Question 14.
Find the value of the expression a2 for a = 10.
(a) 100
(b) 1
(c) 10
(d) None of these

Question 15.
Evaluate exponential expression − 25.
(a) 15
(b) -32
(c) 16
(d) none of these

Question 16.
In exponential form 149,600,000,000 m is given by :
(a) 1.496 × 1011 m
(b) 1.496 × 108 m
(c) 14.96 × 108 m
(d) 14.96 × 1011 m

Answer: (a) 1.496 × 1011 m

Question 17.
The value of 30 is ________.
(a) 0
(b) 3
(c) 1
(d) None of these

Question 18.
The value of ($$\frac { 1 }{ 3 }$$)-2 is equal to
(a) 9
(b) 1
(c) -6
(d) 1/3

Question 19.
The Base in the expression 1024 is __________.
(a) 1
(b) 10
(c) 0
(d) 24

Question 20.
(am)n is equal to
(a) am+n
(b) am-n
(c) amn
(d) an-m