Chapter 1 of Class 11 Maths, titled “Sets,” includes multiple-choice questions (MCQs) with answers provided here. These questions are designed according to the latest CBSE syllabus and exam pattern (2024-2025). Our subject experts have carefully prepared these MCQs and included clear explanations for better understanding. These questions cover all the important concepts from the NCERT curriculum. By practicing these MCQs, Class 11 students can improve their understanding and perform well in exams.
MCQs for Class 11 Maths Chapter 1 Sets
Here are MCQs for Chapter 1, “Sets,” from Class 12 Maths, along with the correct answers. Each question includes a clear explanation to help you understand the concepts better. The questions are based on the topic of Sets and its related formulas. Students are encouraged to try solving the questions on their own first and then check their answers with the provided solutions.
1. A set is a collection of
:a) Numbers
b) Objects
c) Well-defined objects
d) Undefined objects
Answer: c) Well-defined objects
2. Which of these is a well-defined set?
a) The most beautiful places in India
b) The even numbers less than 10
c) The best movies of 2023
d) The tastiest fruits
Answer: b) The even numbers less than 10
3. The symbol for an empty set is:
a) {}
b) ∅
c) Both {} and ∅
d) {0}
Answer: c) Both {} and ∅
4. If A = {1, 2, 3}, which of the following is a subset of A?
a) {1, 2}
b) {4}
c) {1, 5}
d) {1, 2, 4}
Answer: a) {1, 2}
5. If A and B are two sets, A ∩ B means:
a) Union of A and B
b) Difference of A and B
c) Intersection of A and B
d) Symmetric difference of A and B
Answer: c) Intersection of A and B
6. The universal set contains:
a) All possible subsets of a set
b) All elements under consideration
c) Only natural numbers
d) All empty sets
Answer: b) All elements under consideration
7. If A = {1, 2, 3} and B = {3, 4, 5}, then A ∪ B is:
a) {1, 2, 3}
b) {3, 4, 5}
c) {1, 2, 3, 4, 5}
d) {1, 2, 4, 5}
Answer: c) {1, 2, 3, 4, 5}
8. If A = {1, 2, 3} and B = {3, 4, 5}, then A ∩ B is:
a) {1, 2, 3}
b) {3}
c) {4, 5}
d) ∅
Answer: b) {3}
9. The power set of a set with 2 elements has how many subsets?
a) 2
b) 4
c) 6
d) 8
Answer: b) 4
10. If a set A has n elements, the power set of A has:
a) 2n subsets
b) n^2 subsets
c) n subsets
d) 2^n subsets
Answer: d) 2^n subsets
11. If A = {a, b, c}, which of these is not a subset of A?
a) {a}
b) {a, b}
c) {d}
d) {}
Answer: c) {d}
12. The set of vowels in English is:
a) Infinite
b) {a, e, i, o, u}
c) {a, b, c, d}
d) None of the above
Answer: b) {a, e, i, o, u}
13. The difference between sets A and B (A – B) is:
a) All elements in A and B
b) Elements in A but not in B
c) Elements in B but not in A
d) Elements in A or B
Answer: b) Elements in A but not in B
14. If A = {1, 2, 3} and B = {3, 4, 5}, then A – B is:
a) {1, 2}
b) {3}
c) {4, 5}
d) {1, 2, 4, 5}
Answer: a) {1, 2}
15. The symbol “∈” means:
a) Subset
b) Element of
c) Empty set
d) Power set
Answer: b) Element of
16. If x ∈ A, then x is:
a) A subset of A
b) An element of A
c) Not related to A
d) None of the above
Answer: b) An element of A
17. Two sets are equal if:
a) They have the same number of elements
b) They have all the same elements
c) One is a subset of the other
d) Both are empty sets
Answer: b) They have all the same elements
18. The set of natural numbers is:
a) Infinite
b) Finite
c) Empty
d) None of the above
Answer: a) Infinite
19. The set of even numbers less than 10 is:
a) Infinite
b) {2, 4, 6, 8}
c) {1, 3, 5, 7}
d) None of the above
Answer: b) {2, 4, 6, 8}
20. If A = {1, 2, 3} and B = {4, 5}, then A ∩ B is:
a) {1, 2, 3}
b) {4, 5}
c) ∅
d) None of the above
Answer: c) ∅
21. The complement of a set A is:
a) A itself
b) Elements in the universal set but not in A
c) The power set of A
d) The intersection of A and B
Answer: b) Elements in the universal set but not in A
22. If U = {1, 2, 3, 4, 5} and A = {1, 2}, then A’ (complement of A) is:
a) {1, 2}
b) {3, 4, 5}
c) ∅
d) U
Answer: b) {3, 4, 5}
23. A set that contains all subsets of a given set is called:
a) Universal set
b) Subset
c) Power set
d) Empty set
Answer: c) Power set
24. If A ⊂ B, then:
a) A is equal to B
b) A is a subset of B
c) A and B have no common elements
d) None of the above
Answer: b) A is a subset of B25.
25. Which of the following is a finite set?
a) {1, 2, 3, …, 100}
b) {x | x is a natural number}
c) The set of stars in the universe
d) The set of integers
Answer: a) {1, 2, 3, …, 100}
