Class 8 Maths Chapter 1 Rational Numbers MCQ
CBSE CLASS 8 MATHEMATICS / MCQ
Multiple Choice Questions/ RATIONAL NUMBERS – Chapter 1
1. A number which can be written in the form p/q, where p and q are integers and q is not equal to zero is called a —————–
A. Rational numbers
B. Irrational numbers
C. Integers
2. For any rational number a, a divided by zero is ————
A. Zero
B. a
C. not defined
3. For ant two rational numbers a and b, a +b = b +a is known as ————
A. Commutativity of addition
B. Associativity
C. Distributive property
4. Which number is called the identity for the addition of rational numbers?
A. One
B. Zero
C. -1
5. Which is the multiplicative identity for rational numbers?
A. One
B. Zero
C. -1
6. Additive inverse of 2 is ——–
A. 2
B. -2
C. 0
7. Which number has no reciprocal?
A. One
B. Zero
C. -1
8. Additive Inverse of -7/19 is ————-
A. 19/7
B. -7/19
C. 7/19
9. The number of rational numbers between two rational numbers is ———-
A. definite
B. not definite
C. One
10. Rational numbers are ——- under the operations of addition, subtraction and multiplication.
A. Closed
B. Not closed
C. None of these.
11. ———- is neither a positive nor a negative rational number.
A. Zero
B. One
C. -1
12. The value of -7/2 x -1/7 is —————
A. ½
B. -1/2
C. 2
13. Which of the following lies between -1 and 0?
A. ½
B. -1/2
C. 3/2
14. The multiplicative inverse of -3/5 is ————-
A. 3/5
B. -3/5
C. -5/3
15. The number which has its own reciprocal is —————-
A. Zero
B. One
C. Two
ANSWERS:
1. Rational number
2. Not defined
3. Commutativity of addition
4. Zero
5. One
6. -2
7. Zero
8. 7/19
9. Not definite
10. Closed
11. Zero
12. ½
13. -1/2
14. -5/3
15. One
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