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Algebraic Expressions and Identities, Chapter 9 Class 8 Maths MCQs

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MCQ’s For All Chapters – Maths Class 8th

1. The coefficient of x in the expression -7x +5 is

(a) 5

(b) -7

(c) 7

(d) x

Your comments:

Question 1 of 20

2. The numerical coefficient of y in the expression 2x+3y+7z is

(a) 2

(b) 3

(c) 7

(d) 3y

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Question 2 of 20

3. The expression y+z+100 is a

(a) monomial

(b) literal number

(c) binomial

(d) trinomial

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Question 3 of 20

4. The expression 7xy has the factors

(a) 7,x,y

(b) x,y

(c) 7,x

(d) 7,y

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Question 4 of 20

5. The common factors of the terms 2y. 22xy is

(a) 2

(b) 2y

(c) y

(d) xy

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Question 5 of 20

6. The addition of ab-bc, bc-ca, ca-ab is

(a) 3ab+3bc+3ca

(b) 0

(c) ab+bc+ca

(d) ab-bc+ca

Your comments:

Question 6 of 20

7. One of the example of binomial is

(a) 3xyz

(b) 3xy+z

(c) 3x+y+z

(d) 3+x+y+z

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Question 7 of 20

8. The area of triangle is‟ xy‟ where‟ x‟ is length and „y‟ is breadth. If the length of rectangle is increased by 5 units and breadth is decreased by 3 units, the new area of rectangle will be

(a) (x-y)(x+3)

(b) xy+15

(c) (x+5)(y-3)

(d) xy +5-3

Your comments:

Question 8 of 20

9. Multiplication of pq+qr+rp and 'zero' is

(a) pq+qr

(b) pq+rp

(c) pq+qr+rp

(d) 0

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Question 9 of 20

10. The value of 3x(4x-5)+3 for x=3

(a) -6

(b) 66

(c) 106

(d) 0

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Question 10 of 20

11. Which of the following expression is trinomial

(a) xyz

(b) xy+z

(c) x+y+z

(d) x+yz

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Question 11 of 20

12. Which of the following expression is monomial

(a) x+1

(b) pqr

(c) pq+r

(d) p+qr

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Question 12 of 20

13. Subtracting 7x +y from –x +y gives

(a) 6x+2y

(b) 8x+2y

(c) -8x

(d) 8x

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Question 13 of 20

14. Find the value of 95 x 102 by suitable identity.

(a) 10310

(b) 10290

(c) 10690

(d) 9690

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Question 14 of 20

15. The value of 2x (-3x) is

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Question 15 of 20

16. Area of rectangle of length '3x' and breadth '5y' is

(a) 3x+5y

(b) 15xy

(c) 15x

(d) 15y

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Question 16 of 20

17. Number of terms in the expression xyz+1 is

(a) 4

(b) 3

(c) 2

(d) 1

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Question 17 of 20

18. The product of -4p and 7p is

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Question 18 of 20

19. Use suitable identity to evaluate (a) 9801

(b) 10199

(c) 10201

(d) 10001

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Question 19 of 20

20. Multiplication of 'ab' and 'a-b' is

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Question 20 of 20