# Exponents and Powers MCQ Questions for Class 7 Math’s Chapter 13 with Answers

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## Q1. Multiplicative inverse of 1/5 is

(A) 10
(B) 3
(C) 5
(D) None of these

## Q2. The value of (−1)47 is

(A) -1
(B) 1
(C) 0
(D) None of these

(A) 5² × 3²
(B) 2² × 3³
(C) 3 × 5 × 2³
(D) 3 × 5² × 2

(A) -16
(B) 16
(C) 8
(D) – 8

(A) 8
(B) 2
(C) 6
(D) 10

## Q6. Simplify 2 × 10³.

(A) 1000
(B) 2000
(C) 16000
(D) None of these

## Q7. In 104, 10 is called :

(A) Base
(B) Power
(C) Exponent
(D) None of these

## Q8. The exponential form of 81 is

(A) 34
(B) 3³
(C) 3²
(D) none of these

(A) 9³
(B) 34
(C) 36
(D) 3²

(A) 2³
(B) 3²
(C) 4²
(D) 5³

(A) 8
(B) -8
(C) 16
(D) -16

## Q12. Multiplicative inverse of 1/7 is

(A) 14
(B) 7
(C) 49
(D) None of these

## Q13. Express using exponential notation 343.

(A) 37
(B) 7³
(C) 7
(D) None of these

(A) 60
(B) 0
(C) 1
(D) 3

## Q15. Express the following in exponential form.a×a×a×c×c×d×d×d×d

(A) a³ × c² × d4
(B) d² × a³ × c
(C) d² × a² × c
(D) c³ × d4

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