NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions MCQ, are part of NCERT Solutions for Class 7 Maths. Here we have given NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions MCQ.
NCERT Solutions for Class 7 Maths Chapter 12 Algebraic Expressions MCQ
Important Multiple Choice Questions
1. How many terms are there in the expression 2x2y?
(a) 1
(b) 2
(c) 3
(d) 4.
2. How many terms are there in the expression 2y + 5?
(a) 1
(b) 2
(c) 3
(d) 4.
3. How many terms are there in the expression 1.2 ab – 2.46 + 3.6a?
(a) 1
(b) 2
(c) 3
(d) 4.
4. How many terms are there in the expression – 2p3 – 3p2 + 4p + 7?
(a) 1
(b) 2
(c) 3
(d) 4.
5. What is the coefficient of x in the expression 4x + 3y?
(a) 1
(b) 2
(c) 3
(d) 4.
6. What is the coefficient of x in the expression 2 – x + y?
(a) 2
(b) 1
(c) -1
(d) None of these.
7. What is the coefficient of x in the expression y2x + y?
(a) y2
(b) y
(c) 1
(d) 0.
8. What is the coefficient of x in the expression 2 z – 3 xz?
(a) 3
(b) z
(c) 3z
(d) – 3z.
9. What is the coefficient of x in the expression 1 + x + xz?
(a) z
(b) 1 + z
(c) 1
(d) 1 + x.
10. What is the coefficient of x in the expression 2x + xy2?
(a) 2 + y2
(b) 2
(c) y2
(d) None of these.
11. What is the coefficient of y2 in the expression 4 – xy2?
(a) 4
(b) x
(c) – x
(d) None of these.
12. What is the coefficient of y2 in the expression 3y2 + 4x?
(a) 1
(b) 2
(c) 3
(d) 4.
13. What is the coefficient of y2 in the expression 2x2y – 10xy2 + 5y2?
(a) 5 – 10x
(b) 5
(c) – 10 x
(d) None of these.
14. What is the coefficient of x in the expression ax3 + bx2 + d?
(a) a
(b) b
(c) d
(d) 0.
15. What is the coefficient of x2 in the expression ax + b?
(a) a
(b) b
(c) a+ b
(d) 0.
16. Which of the following pairs of terms is a pair of like terms?
(a) 1, 10
(b) y, – xy
(c) z2, Z
(d) Z2, 8.
17. Which of the following pairs of terms is a pair of like terms?
(a) 7xy, 14yx
(b) m2p, mp2
(c) 6xz, 12 x2 z2
(d) – 13x, – 13y.
18. Which of the following pairs of terms is a pair of like terms?
(a) 3x, 2xy
(b) – xy2, – 2xy2
(c) – 6x2, 20x2y
(d) 8x2, 7y.
19. Which of the following pairs of terms is a pair of like terms?
(a) 7p,8q
(b) 10pq,- 7qp
(c) 12q2 p2, – 5p2
(d) 2405p, 78 qp.
20. Which of the following pairs of terms is a pair of unlike terms?
(a) -p2q2, 12q2p2
(b) 41,100
(c) qp2, 13p2q
(d) -4yx2, – 4xy2.
21. Add 2mn, -4mn, 8mn, – 6mn
(a) 0
(b) 2 mn
(c) 8 mn
(d) 10 mn
22. Add a + b – 1, b – a + 1, 1 – 26
(a) 1
(b) – 1
(c) 2
(d) -2
23. Add 4x2y, – 3x2y, – 7xy2, 7xy2
(a) x2y
(b) xy2
(c) xy
(d) -x2 y
24. Simplify : p + (p – q) + q + (q – p)
(a) p
(b) q
(c) p + q
(d) p – q
25. Simplify : z2 + 11z2 – 5z – 11z2 + 5z
(a) z2
(b) -z2
(c) 5z
(d) -5z
26. Subtract – xy from xy
(a) xy
(b) 2xy
(c) 3xy
(d) 4xy
27. Subtract y2 from – 5y2
(a) -6y2
(b) 6y2
(c) y2
(d) -5y2
28. What should be added to x2 + y2 to get x2 + y2 + 2 xy?
(a) xy
(b) 2xy
(c) 4xy
(d) – 2xy.
29. What should be subtracted from x2 + y2 – 2xy to get x2 + y2?
(a) 2xy
(b) – 2xy
(c) xy
(d) – xy.
30. Find the value of the expression x + 2 for x = – 2
(a) 0
(b) 2
(c) – 2
(d) 4.
31. Find the value of the expression 4x – 3 for x = 1
(a) 4
(b) -3
(c) 3
(d) 1.
32. Find the value of the expression 100 – 10 x 3 for x = 0
(a) 10
(b) -10
(c) 100
(d) – 100.
33. Find the value of the expression 5n – 3 for n = – 1
(a) 5
(b) -3
(c) -8
(d) 8
34. Find the value of the expression x2 + 2x + 1 for x = – 1
(a) 0
(b) 1
(c) -1
(d) 2.
35. Find the value of the expression a + b for a = 1, b = 2
(a) 1
(b) 2
(c) 3
(d) 4.
36. Find the value of the expression a2 – 2ab + b2 for a = 1, b = 1
(a) 1
(b) 0
(c) – 1
(d) 2.
37. Find the value of the expression a2 – b2 for a = 2, b = 1
(a) 1
(b) 2
(c) 3
(d) 4.
38. Find the value of the expression a2 + b2 for a = 1, b = 0
(a) 1
(b) 0
(c) 2
(d) 4.
39. Find the value of the expression a2 + ab + 1 for a = 0, 6 = 1
(a) 0
(b) 1
(c) -1
(d) 2.
40. Find the value of the expression 3x + 5 (x – 2) for x = 2
(a) 2
(b) 4
(c) 5
(d) 6.
41. Find the value of the expression z3 – 2(z – 10) for z = 10
(a) 10
(b) 100
(c) 1000
(d) 10000.
42. Find the value of the expression – x + 2 for x = -2
(a) 1
(b) 2
(c) 3
(d) A.
43. Find the value of the expression 3p + 7 for p =- 2
(a) 1
(b) – 1
(c) 2
(d) -2.
44. Find the value of the expression a3 + b3 + c3 – 3abc for a = 2, b = 3, c = 4
(a) 3
(b) 6
(c) 9
(d) 27
45. If the value of the expression x2 – 5x + k for x = 0 is 5, then the value of k is
(a) 2
(b) 3
(c) 4
(d) 5.
ANSWERS
HINTS/SOLUTIONS
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