MCQ Questions  Class 8 Maths Chapter 12  Exponents and Powers with Answers
MCQ  Exponents and Powers Class 8
Check the below NCERT MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers with Answers Pdf free download. MCQ Questions for Class 8 Maths with Answers were prepared based on the latest exam pattern. We have Provided Exponents and Powers Class 8 Maths MCQs Questions with Answers to help students understand the concept very well.
Objective Question  NCERT Maths Class 8
Book:  National Council of Educational Research and Training (NCERT) 

Board:  Central Board of Secondary Education (CBSE) 
Class:  8th 
Subject:  Maths 
Chapter:  12 Part3 
Chapters Name:  Exponents and Powers 
Medium:  English 
Ncert Solutions for Class 8 Maths  Objective Type Questions
You can refer to NCERT Solutions for Class 8 Maths Chapter 12 Exponents and Powers to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
Exponents and Powers  Class 8 Maths  NCERT Solutions
Q1.  CBSE Class 8 Maths Mcq Questions The value of 2^{2} is: 
A. 4 

B. ¼ 

C. 2 

D. ½ 
Ans: ¼
Hint:
2^{2} = 1/2^{2} = ¼
Hint:
2^{2} = 1/2^{2} = ¼
Q2.  CBSE Class 8 Maths Exponents and Powers Mcq Questions The multiplicative inverse of 7^{2 }is: 
A. 7^{2} 

B. 7 

C. 1/7^{2} 

D. 1/7 
Ans: 7^{2}
Hint:
The multiplicative inverse of any value is the one which when multiplied by the original value gives a value equal to 1.
7^{2} = 1/7^{2}
Hence, 7^{2} x 1/7^{2} = 1
Hint:
The multiplicative inverse of any value is the one which when multiplied by the original value gives a value equal to 1.
7^{2} = 1/7^{2}
Hence, 7^{2} x 1/7^{2} = 1
Q3.  Class 8 Maths Mcq Chapter 12 2^{2} x 2^{3} x 2^{4} is equal to: 
A. 2^{24} 

B. 2^{5} 

C. 2^{9} 

D. 2^{9} 
Ans: 2^{9}
Hint:
By laws of exponents:
a^{m} x a^{n} = a^{m+n}
2^{2} x 2^{3} x 2^{4} = 2^{2+3+4} = 2^{9}
Hint:
By laws of exponents:
a^{m} x a^{n} = a^{m+n}
2^{2} x 2^{3} x 2^{4} = 2^{2+3+4} = 2^{9}
Q4.  Class 8 Maths Mcq online test 3^{2} x 3^{5} is equal to: 
A. 3^{7} 

B. 3^{3} 

C. 3^{10} 

D. 3^{7} 
Ans: 3^{7}
Hint:
3^{2} x 3^{5 }= (1/3^{2}) x (1/3^{5})
= (1/3^{2+5})
= (1/3^{7})
= 3^{7}
Hint:
3^{2} x 3^{5 }= (1/3^{2}) x (1/3^{5})
= (1/3^{2+5})
= (1/3^{7})
= 3^{7}
Q5.  Class 8 Maths Mcq with answers 5^{4}/5^{2} is equal to: 
A. 5^{6} 

B. 5^{6} 

C. 5^{2} 

D. 5^{2} 
Ans: 5^{2}
Hint:
By exponent law:
a^{m}/a^{n} = a^{mn}
5^{4}/5^{2} = 5^{42} = 5^{2}
Hint:
By exponent law:
a^{m}/a^{n} = a^{mn}
5^{4}/5^{2} = 5^{42} = 5^{2}
Q6.  Learn Cbse Class 8 Maths Mcq The value of (3^{4})^{3} is: 
A. 3 

B. 3^{12} 

C. 3^{7} 

D. None of the above 
Ans: 3^{12}
Hint:
By law of exponent:
(a^{m})^{n} = a^{mn}
(3^{4})^{3} = 3^{4×3} = 3^{12}
Hint:
By law of exponent:
(a^{m})^{n} = a^{mn}
(3^{4})^{3} = 3^{4×3} = 3^{12}
Q7.  Mcq Class 8 Maths Chapter 12 3^{2} x 4^{2} is equal to: 
A. 121 

B. 49 

C. 144 

D. 156 
Ans: 144
Hint:
By exponent law;
a^{m} x b^{m} = (ab)^{m}
3^{2} x 4^{2} = (3×4)^{2} = 12^{2} = 144
Hint:
By exponent law;
a^{m} x b^{m} = (ab)^{m}
3^{2} x 4^{2} = (3×4)^{2} = 12^{2} = 144
Q8.  Mcq for Class 8 Maths Chapter 12 5^{7}/6^{7} will give the value: 
A. (5/6)^{7} 

B. (5/6)^{0} 

C. (5/6)^{7} 

D. (6/5)^{7} 
Ans: (5/6)^{7}
Hint:
By exponent law:
a^{m}/b^{m} = (a/b)^{m}
5^{7}/6^{7} = (⅚)^{7}
Hint:
By exponent law:
a^{m}/b^{m} = (a/b)^{m}
5^{7}/6^{7} = (⅚)^{7}
Q9.  Mcq Questions for Class 8 Maths with answers pdf Chapter 12 100^{0}+20^{0}+5^{0} is equal to 
A. 125 

B. 25 

C. 1/125 

D. 3 
Ans: 3
Hint:
By exponent law we know:
a^{0} = 1
100^{0} + 20^{0} + 5^{0} = 1 + 1 + 1 = 3
Hint:
By exponent law we know:
a^{0} = 1
100^{0} + 20^{0} + 5^{0} = 1 + 1 + 1 = 3
Q10.  Mcq Questions for Class 8 Maths with answers pdf download If (–3)^{m+1} × (3)^{5} = (3)^{7}, then the value of m is: 
A. 5 

B. 7 

C. 1 

D. 3 
Ans: 1
Explanation: (3)^{m+1} × (3)^{5} = (3)^{7}
(3)^{m+1+5} = (3)^{7}
(3)^{m+6} = (3)^{7}
Since, base are equal on both the sides, hence if we compare the powers,
m + 6 = 7
m = 7 – 6 = 1
Explanation: (3)^{m+1} × (3)^{5} = (3)^{7}
(3)^{m+1+5} = (3)^{7}
(3)^{m+6} = (3)^{7}
Since, base are equal on both the sides, hence if we compare the powers,
m + 6 = 7
m = 7 – 6 = 1
CBSE Solutions  Ncert Solutions Maths Class 8
NCERT Solutions  MCQ Class 8 Maths
NCERT  Class 8 Maths Solutions
CBSE MCQ Questions with Answers Class 8 Maths

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MCQ Questions for Class 8 Maths Chapter 12 Exponents and Powers Part2
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