# Class 11 Math Chapter 2 MCQ Question Answer NCERT Solution

NCERT Class 11 Math Relations and Functions Chapter 2 MCQ Question Answer for Preparation of Exams. Here we Provide Class 11 Math Question Answer, Important Questions, MCQ for Various State Boards Students like CBSE, Haryana, uttar pradesh, mp and other state students.

Also Read : – Class 11 Math NCERT Solution

NCERT Class 11 Math Chapter 2 Relations and Functions MCQ Question Answer Solution.

## Relations and Functions Class 11 Math Chapter 2 MCQ Question Answer

Multiple Choice Questions and Answer for Easy to Understand the Chapter.

### Class 11 Maths Chapter 2 Exercise 2.1 MCQ

1. If ( x + 1, y – 2) = ( 3,1), then values of x and y are
(A) 2, 3
(B) 3, 4
(C) 2, 4
(D) 1, 3

Ans. 2, 3.

2. If A × B = {(p, q), (p, r), (m, q), (m, r)}, then which of the following is true?
(A) A = {p, m}
(B) B = {q, r}
(C) Both A and B
(D) none of the above.

Ans. Both A and B.

3. If set A has 3 elements and set B = {3, 4, 5}, then number of elements in (A×B) is
(A) 6
(B) 9
(C) 3
(D) 1

Ans. 9

4. If G = {7, 8} and H = {5, 4, 2} , then number of subsets in G×H is
(A) 32
(B) 64
(C) 8
(D) 16

Ans. 64

5. let A = {1, 2} and B = {2, 3}, then A×(A∩B) is
(A) {(1, 2), (2, 2)}
(B) {(2,3), (3, 4)}
(C) {(1, 3), (2, 4)}
(D) none of the above.

Ans. (A) {(1, 2), (2, 2)}.

### Class 11 Maths Chapter 2 Exercise 2.2 MCQ

1. Let A = {1,2} and B = {3, 4}. Then the number of relations from A to B is
(A) 6
(B) 4
(C) 8
(D) 16

Ans. 16

2. A relation R from A to A is R = {(x, y) : y = x + 1 } where  A = {1, 2, 3, 4} . Then domain is
(A) {1, 2, 3}
(B) {1, 2, 3, 4}
(C) {1, 2}
(D) none of the above.

Ans. (A) {1, 2, 3}

3. A relation R from A to A is R = {(x, y) : y = x + 1 } where  A = {1, 2, 3, 4} . Then range is
(A) {1, 2, 3}
(B) {1, 2, 3, 4}
(C) {1, 2}
(D) none of the above.

Ans. (B) {1, 2, 3, 4}

4. Which of the following is true regarding range and codomain?
(A) range = codomain
(B) range ⊂ codomain
(C) range ⊆ codomain
(D) range ⊇ codomain

Ans. (C) range ⊆ codomain

5. What will be the total no of relations from A to B where n(A) = p, n(B) = q.
(A) 2pq
(B) pq
(C) 2p + q
(D) none of the above

Ans. (A) 2pq

### Class 11 Maths Chapter 2 Exercise 2.3 MCQ

1.  Which of the following is the range of given function
f(x) = 2 – 3x, x ∈ R, x > 0
(A) ( – ∞, 2)
(B) [ -∞, 2]
(C) [ 2, ∞)
(D) none of the above

Ans. (A) ( – ∞, 2)

2. A function f is defined by f(x) = 2x – 5. Then the value of f(7) is
(A) 8
(B) 9
(C) 5
(D) 7

Ans. (B) 9.

3. The range of real function f(x) = -ΙxΙ is
(A) ( -∞, ∞)
(B) ( -∞, 0)
(C) ( -∞, 0]
(D) none of the above.

Ans. (C) ( -∞, 0]

4. Which of the following is not a function?
(A) {(1, 2), (2, 3)}
(B) {(1, 2), (1, 3)}
(C) {(2, 3), (3, 1)}
(D) none of the above.

Ans. (B) {(1, 2), (1, 3)}

5. Which of the following is a function?
(A) {(1, 2), (2, 3), (7, 8), (8, 9)}
(B) {(1, 2), (2, 3), (3, 4)}
(C) {(2, 3), (3, 1), (4, 1)}
(D) all of the above.

1. 