NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers MCQ, are part of NCERT Solutions for Class 7 Maths. Here we have given NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers MCQ.
NCERT Solutions for Class 7 Maths Chapter 13 Exponents and Powers MCQ
Important Multiple Choice Questions
1. The exponential form of 10000 is
(a) 103
(b) 104
(c) 105
(d) none of these.
2. The exponential form of 100000 is
(a) 103
(b) 104
(c) 105
(d) none of these.
3. The exponential form of 81 is
(a) 34
(b) 33
(c) 32
(d) none of these.
4. The exponential form of 125 is
(a) 54
(b) 53
(c) 52
(d) none of these.
5. The exponential form of 32 is
(a) 23
(b) 24
(c) 25
(d) none of these.
6. The exponential form of 243 is
(a) 35
(b) 34
(c) 33
(d) 32.
7. The exponential form of 64 is
(a) 25
(b) 26
(c) 27
(d) 28.
8. The exponential form of 625 is
(a) 52
(b) 53
(c) 54
(d) 55.
9. The exponential form of 1000 is
(a) 101
(b) 102
(c) 103
(d) 104.
10. The value of (- 2)3 is
(a) 8
(b) – 8
(c) 16
(d) – 16.
11. The value of (- 2)4 is
(a) 8
(b) – 8
(c) 16
(d) – 16.
12. What is the base in 82?
(a) 8
(b) 2
(c) 6
(d) 10.
13. What is the exponent in 82?
(a) 8
(b) 2
(c) 16
(d) 6.
14. (-1)even number =
(a) -1
(b) 1
(c) 0
(d) none of these
16. 0 × 104 =
(a) 0
(b) 104
(c) 1
(d) none of these.
17. If 23 × 24 = 2?, then ? =
(a) 3
(b) 4
(c) 1
(d) 7.
18. If (- 3)4 × (- 3)6 = (- 3)?, then ? =
(a) 4
(b) 10
(c) 6
(d) 12.
19. 27 ÷ 23 =
(a) 24
(b) 210
(d) 2
(d) (frac { 1 }{ 2 } )
20. 106 ÷ 105 =
(a) 101
(b) 105
(c) 106
(d) 1011.
21. b × b × b × b × b =
(a) b5
(b) b4
(c) b6
(d) b3.
22. (- 5)4 =
(a) 125
(b) 625
(c) 375
(d) 125.
23. am × an =
(a) am+n
(b) am-n
(c) amn
(d) am/n
24. am ÷ an =
(a) am+n
(b) am-n
(c) amn
(d) am/n
25. (22)3 =
(a) 22
(b) 23
(c) 21
(d) 26.
26. (52)10 =
(a) 52
(b) 520
(c) 510
(d) 55.
27. (am)n =
(a) am+n
(b) am-n
(c) amn
(d) am/n.
28. If a is any non-zero integer, then a° =
(a) a
(b) 0
(c) 1
(d) none of these.
29. 3° =
(a) 0
(b) 1
(c) 3
(d) none of these.
30. 3° × 4° × 5° =
(a) 1
(b) 3
(c) 4
(d) 5.
31. (2° + 3°) × 4° =
(a) 1
(b) 2
(c) 3
(d) 4.
32. 3° + 4° + 5° =
(a) 1
(b) 2
(c) 3
(d) none of these.
33. Which of the following is true?
(a) 2° = (100)°
(b) 102 × 108 = 1016
(c) 22 × 33 = 65
(d) 23 > 32.
34. (22 × 2)2 =
(a) 23
(b) 24
(c) 25
(d) 26.
35. (frac { { 3 }^{ 8 } }{ { 3 }^{ 5 }times { 3 }^{ 3 } } =)
(a) 1
(b) 3
(c) 5
(d) 8
36. ((frac { { a }^{ 4 } }{ { a }^{ 2 } } times { a }^{ 3 }=))
(a) a4
(b) a5
(c) a6
(d) a8.
37. 82 ÷ 24 =
(a) 1
(b) 2
(c) 3
(d) 4
38. (-2a)3 =
(a) 2a3
(b) 4a3
(c) 8a3
(d) -8a3
39. am ÷ bm =
(a) am bm
(b) ((frac { a }{ b } ))m
(c) (frac { a }{ b } )
(d) 1
40. (ab)m =
(a) am bm
(b) amb
(c) abm
(d) ab
41. 333 in standard form is
(a) 3.33 × 102
(b) 3.33 × 103
(c) 3.33 × 101
(d) 3.33 × 104.
42. 6000 in standard form is
(a) 6 × 103
(b) 6 × 106
(c) 6 × 104
(d) 6 × 105.
43. 3430000 in standard form is
(a) 3.43 × 106
(b) 3.43 × 104
(c) 3.43 × 102
(d) 3.43 × 1010.
44. 1353000000 in standard form is
(a) 1.353 × 109
(b) 1.353 × 106
(c) 1.353 × 103
(d) 1.353 × 1012.
45. 100000000000 in standard form is
(a) 1 × 108
(b) 1 × 109
(c) 1 × 1010
(d) 1 × 1011.
ANSWERS
HINTS/SOLUTIONS
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