Rational Numbers, Chapter 1 Class 8 Maths MCQs

1. What should be added to -5/4 to get -1?

(a) -1/4

(b) 1/4

(c) 1

(d) -3/4

Question 1 of 15

2. What should be subtracted from -5/4 to get -1?

(a) -1/4

(b) 1/4

(c) 1

(d) -3/4

Question 2 of 15

3. Which of the following is the identity element?

(a) 1

(b) -1

(c) 0

(d) None of these

Question 3 of 15

4. Which of the following is the Multiplicative identity for rational numbers?

(a) 1

(b) -1

(c) 0

(d) None of these

Question 4 of 15

5. Which of the following lies between 0 and -1?

(a) 0

(b) -3

(c) -2/3

(d) 4/3

Question 5 of 15

6. Which of the following is the product of 7/8 and -4/21?

(a) -1/6

(b) 1/12

(c) -16/63

(d) -147/16

Question 6 of 15

7. Which of the following is the product of (-7/8) and 4/21?

(a) -1/6

(b) 12

(c) -63/16

(d) -16/147

Question 7 of 15

8. Which of the following is the reciprocal of the reciprocal of a rational number?

(a) -1

(b) 1

(c) 0

(d) The number itself

Question 8 of 15

9. Write the rational number that is equal to its reciprocal

a. -2

b. 0

c. 2

d. 1

Question 9 of 15

10. Sum of two rational numbers is a _______.

a. negative number

b. irrational number

c. none of these

d. rational number

Question 10 of 15

11. For any three rational numbers a, b and c, a + (b + c) = __________.

a. (a + b) + c

b. (a + b) – c

c. (a – b) – c

d. (a – b) + c

Question 11 of 15

12. Name the property under multiplication used in

a. Associative property

b. none of these

c. Commutative property

d. Multiplicative identity

Question 12 of 15

13. Find the multiplicative inverse of 1/4.

a. -1

b. 1

c. -4

d. 4

Question 13 of 15

14.

a. 1/4

b. 0

c. 4

d. 1

Question 14 of 15

15. Find the multiplicative inverse of -13.

a. 13

b. -13

c. -1/13

d. 12

Question 15 of 15