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CBSE Class 12 Maths Assertion Reasoning Questions PDF: CBSE Class 12 Maths Board exam 2025 is knocking at the doors and all the aspirants must be in desperate need of study materials that can boost their performance in the exam. To assist you all in your preparation journey, Jagran Josh has brought you some important Class 12 Maths Assertion Reasoning questions for the CBSE board exams 2025. These 1-mark questions are a definite ask in the board exams. Students will get 2 Assertion-reasoning-based questions of 1 mark each in the board exam.
These questions are competency-based questions that focus on evaluating thinking capabilities and practical understanding of the subject in students. The board has since 2020 introduced Assertion-reasoning-based questions in the Class 12 curriculum. These questions can also be quite confusing and tricky at times. Though it has a very low marks weightage in the paper, it becomes immensely important for students to ensure that they do not miss out on these 2 marks for a high score. Check some important Class 12 Maths Assertion Reasoning questions below.
CBSE Maths Assertion Reasoning Questions for Board Exam 2025
We have provided you all with some important assertion reasoning based questions that we felt were important for the upcoming board exam 2025. Hence, we would advise students not to miss out on these and ensure that you go through them, before sitting for your final tests.
In the following questions, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct answer out of the following choices.
(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
(b) Both (A) and (R) are true but (R) is not the correct explanation of (A).
(c) (A) is true but (R) is false.
(d) (A) is false but (R) is true.
1. Assertion (A): The relation P on set X is a transitive relation.
Reason (R): The relation P has a subset of the form {(a, b), (b, c), (a, c)}, where a, b, c ∈ X.
Answer. d
2. Assertion (A): The maximum value of the function f(x) = x 5 , x ∈ [-1, 1], is attained at its critical point, x = 0.
Reason (R): The maximum of a function can only occur at points where the derivative is zero.
Answer. d
3. Assertion (A): The function f is not onto.
Reason (R): 3 ∈ R (co-domain of f) has no preimage in the domain of f.
Answer. c
4. Assertion (A): The function f(x) = |x − 6|(cos x) is differentiable in 𝑅 − {6}.
Reason (R): If a function f is continuous at a point c, then it is also differentiable at that point.
Answer. c
5. 
Answer. a
6. 
Answer. d
7. 
Answer. c
8. 
Answer. a
9. 
Answer. a
10. 
Answer. d
How to Solve Assertion Reasoning Questions
Check the method to solve Assertion-Reasoning questions below. Following this procedure can help you in correctly solving such questions.
- Read the Assertion and Reasoning carefully
- Check the options given below
- Analyse the assertion and their reasons
- Carefully check the options one by one
- Select the most appropriate answer as per the options
Important Resources for CBSE Class 12 Maths Board Exam 2025
The below-provided resources will enhance student's performance in the upcoming CBSE Class 12 Maths Board Exam 2025. Check the complete list below for better guidance and assistance.
CBSE Class 12 Maths Syllabus 2025
CBSE Class 12 Maths Sample Paper 2025
CBSE Class 12 Maths Exam Pattern & Marking Scheme
CBSE Class 12 Maths Toppers’ Answer Sheet 2024
2 Mark Important Questions for Class 12 Maths CBSE Board Exam
3 Mark Important Questions for Class 12 Maths CBSE Board Exam
4 or 5 Mark Important Questions for Class 12 Maths CBSE Board Exam
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