Relations and Functions MCQs Class 12 Maths Chapter 1 – MCQ Question and Answers

by | Dec 24, 2025 | General | 0 comments

Relations and Functions MCQ Question Answers for CUET 2026 from Class 12 Maths Chapter 1

To score full marks in the CUET 2026 Maths exam, Practice Class 12 Maths Chapter 1 Relations and Functions MCQ Test any number of times free on our website. These questions have been created by our experts from the latest Class 12 Maths Syllabus and as per latest exam pattern. Multiple Choice Questions (MCQs) are a type of objective assessment in which a person is asked to choose one or more correct answers from a list of available options. An MCQ presents a question along with several possible answers. Most of the exams in India including CUET exam conduct online test to check your knowledge

Class 12 Maths Chapter 1 MCQs

1. Number of binary operations on the set {a, b} are
a.
b.
c.
d.

2. Question
a.
b.
c.
d.

3. Let * be the binary operation on N given by a * b = HCF (a, b) where, a, b ∈ N. Find the value of 22 * 4.
a.
b.
c.
d.

4. The maximum number of equivalence relations on the set A = {1, 2, 3} are
a.
b.
c.
d.

5. Question
a.
b.
c.
d.

6. Let A = {x : -1 ≤ x ≤ 1} and f : A → A is a function defined by f(x) = x |x| then f is
a.
b.
c.
d.

7. Region represented by x ≥ 0, y ≥ 0 is
a.
b.
c.
d.

8. Objective function of a L.P.P.is
a.
b.
c.
d.

9. Question
a.
b.
c.
d.

10. The number of commutative binary operations that can be defined on a set of 2 elements is
a.
b.
c.
d.

11. Question
a.
b.
c.
d.

12. Question
a.
b.
c.
d.

13. Question
a.
b.
c.
d.

14. Let R be the relation “is congruent to” on the set of all triangles in a plane is
a.
b.
c.
d.

15. Question
a.
b.
c.
d.

16. The smallest integer function f(x) = [x] is
a.
b.
c.
d.

17. Let A = N × N and * be the binary operation on A defined by (a, b) * (c, d) = (a + c, b + d). Then * is
a.
b.
c.
d.

18. Question
a.
b.
c.
d.

19. Let A = {1, 2, 3} and consider the relation R = {(1, 1), (2, 2), (3, 3), (1, 2), (2, 3), (1, 3)}. Then R is
a.
b.
c.
d.

20. Question
a.
b.
c.
d.

21. If N be the set of all-natural numbers, consider f : N → N such that f(x) = 2x, ∀ x ∈ N, then f is
a.
b.
c.
d.

22. If set A contains 5 elements and the set B contains 6 elements, then the number of one-one and onto mappings from A to B is
a.
b.
c.
d.

23. The function f : R → R defined by f(x) = 3 – 4x is
a.
b.
c.
d.

24. Let R be a relation on the set N of natural numbers denoted by nRm ⇔ n is a factor of m (i.e. n | m). Then, R is
a.
b.
c.
d.

25. The maximum value of f = 4x + 3y subject to constraints x ≥ 0, y ≥ 0, 2x + 3y ≤ 18; x + y ≥ 10 is
a.
b.
c.
d.


 

 

To summarize, revising for free using our MCQs on Class 12 Maths Chapter 1 Relations and Functions is highly beneficial for scoring full marks on the CUET 2026 Maths exam. We provide a sophisticated online test platform tailored for unlimited practice through proficiently crafted questions built on the most recent syllabus and exam pattern. Practicing MCQs regularly will boost conceptual understanding as they are significant for objective assessments. Start practicing now to succeed in your CUET 2026 Maths exam!

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