Class 8 Maths – Chapter 12: Exponents & Powers

MCQs (Multiple Choice Questions)

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1. What is the value of 2³ ?

A) 6    B) 8    C) 9    D) 12

2. Which of the following is equal to 10⁴ ?

A) 10 × 10 × 10    B) 10 × 10 × 10 × 10    C) 4 × 10    D) 10 + 10 + 10 + 10

3. 5² × 5³ = ?

A) 5⁵    B) 5⁶    C) 25⁵    D) 10⁵

4. Which law of exponents is used in aᵐ × aⁿ = aᵐ⁺ⁿ ?

A) Product law    B) Quotient law    C) Power law    D) Zero exponent law

5. What is the value of any non-zero number raised to the power 0?

A) 0    B) 1    C) Same number    D) Undefined

6. 3⁰ = ?

A) 0    B) 1    C) 3    D) 9

7. Which of the following is written in exponential form?

A) 2 × 2 × 2 × 2    B) 4 + 4    C) 2 + 2 + 2    D) 8 ÷ 2

8. (2³)² = ?

A) 2⁵    B) 2⁶    C) 2⁹    D) 6²

9. Which rule is used in (aᵐ)ⁿ = aᵐⁿ ?

A) Product rule    B) Power of a power rule    C) Zero exponent rule    D) Division rule

10. The standard form of 5000 is:

A) 5 × 10³    B) 50 × 10²    C) 500 × 10    D) 5 × 1000

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Answer Key

1) B   2) B   3) A   4) A   5) B
6) B   7) A   8) B   9) B   10) A