We have compiled the NCERT MCQ Questions for Class 7 Maths Chapter 13 Exponents and Powers with Answers Pdf free download covering the entire syllabus. Practice MCQ Questions for Class 7 Maths with Answers on a daily basis and score well in exams. Refer to the Exponents and Powers Class 7 MCQs Questions with Answers here along with a detailed explanation.

## Exponents and Powers Class 7 MCQs Questions with Answers

Choose the correct option.

Question 1.

The exponential form of 3125 is

(a) 5²

(b) 5³

(c) 5^{4}

(d) 5^{5}

## Answer

Answer: (d) 5^{5}

Question 2.

The value of (-2)^{4} is ………..

(a) -16

(b) 16

(c) 8

(d) – 8

## Answer

Answer: (b) 16

Question 3.

If (-3)^{4} × (-3)^{6} = (-3)^{x} then x = ………….

(a) -10

(b) 10

(c) – 4

(d) – 6

## Answer

Answer: (b) 10

Question 4.

The value of 3° × 4° × 5° is ………..

(a) 60

(b) 0

(c) 1

(d) 3

## Answer

Answer: (c) 1

Question 5.

If x is a rational number and ‘a’ and ‘b’ are whole numbers then the value of x^{a} × x^{b} is

(a) x^{a-b}

(b) x^{ab}

(c) x^{\(\frac {a}{b}\)}

(d) x^{a+b}

## Answer

Answer: (d) x^{a+b}

Question 6.

If x is a rational number ‘a’ and ‘b’ (a > b) are whole numbers, then the value of x^{a} ÷ x^{b} is

(a) x^{a+b}

(b) x^{a-b}

(c) x^{\(\frac {a}{b}\)}

(d) x^{ab}

## Answer

Answer: (b) x^{a-b}

Question 7.

The value of \(\frac {3^8}{3^5×3^3}\) is …………

(a) 1

(b) 3

(c) 5

(d) 8

## Answer

Answer: (a) 1

Question 8.

20,00,000 in standard form is

(a) 0.2 × 10^{5}

(b) 2.0 × 10^{6}

(c) 10.2 × 10^{6}

(d) 10.2 × 10^{5}

## Answer

Answer: (b) 2.0 × 10^{6}

Question 9.

3430000 in standard form is

(a) 3.43 × 10^{6}

(b) 3.43 × 10^{4}

(c) 3.43 × 10²

(d) 3.43 × 10°

## Answer

Answer: (a) 3.43 × 10^{6}

Question 10.

1.2 × 10^{10} in the normal form is

(a) 120000000000

(b) 12000000

(c) 12000000

(d) 12000 000 000

## Answer

Answer: (d) 12000 000 000

Question 11.

The value of (\(\frac {3}{4}\))° is

(a) 0

(b) 1

(c) -1

(d) None of these

## Answer

Answer: (b) 1

Question 12.

The value of (-1)² is

(a) 0

(b) -1

(c) 1

(d) None of these

## Answer

Answer: (c) 1

Fill in the blanks

Question 1.

5° × 3° is ……………..

## Answer

Answer: 1

Question 2.

\(\frac {64}{729}\) is expressed in power notation as ………………

## Answer

Answer: (4/9)³

Question 3.

(\(\frac {-3}{5}\)) × (\(\frac {-3}{5}\)) × (\(\frac {-3}{5}\)) × (\(\frac {-3}{5}\)) × (\(\frac {-3}{5}\)) × (\(\frac {-3}{5}\))

is expressed in exponential form as ……………..

## Answer

Answer: (-3/5)³

Question 4.

Simplify (\(\frac {5}{11}\))^{6} ÷ (\(\frac {5}{11}\))^{7} the result ………………..

## Answer

Answer: \(\frac {11}{5}\)

Question 5.

The value of (10) × (-10)³ is ………………..

## Answer

Answer: -(10)^{4}

Question 6.

(\(\frac {2}{3}\))² × (\(\frac {2}{3}\))³ = ……………………..

## Answer

Answer: (\(\frac {2}{3}\))^{5}

Question 7.

(\(\frac {1}{2}\))^{5} + (\(\frac {1}{2}\))³ = ……………………..

## Answer

Answer: (\(\frac {1}{2}\))^{5-3}

Question 8.

(2 × 3)° = …………………

## Answer

Answer: 1

Question 9.

{\(\frac {2^1}{3^3}\)}° = …………………

## Answer

Answer: 1

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