Maths 12th Matrices MCQs: The Central Board of Secondary Education (CBSE) conducts the annual board exams for class 12, and it is considered one of the most important tests a student will face in their school life. The board exam encompasses a comprehensive syllabus and various types of questions. Multiple-choice questions are asked in the exam as well and hold significant weightage, especially for CBSE Class 12 Mathematics papers. Maths is considered as tricky subject among students, but MCQs can boost the scores because they're a short and simple section.
Matrices consist of complex calculations and numerous formulas that students need to memorise. But if you check out the following MCQs for CBSE Class 12 Maths Chapter 3 Matrices, it’s sure to calm your mind and improve your confidence. The questions vary in difficulty level from easy to hard.
Key Highlights
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MCQs for CBSE Class 12 Maths Chapter 3 Matrices
1. If A = [5 6 7] and B = [2 7 1], then A + B = ?
(a) [7 12 8]
(b) [7 13 8]
(c) [3 13 6]
(d) [7 13 6]
2. If A is a square matrix such that A2 = A, then (I – A)3 + A is equal to
(a) I
(b) 0
(c) I - A
(d) I + A
Related: CBSE Class 12 Mathematics Syllabus 2025-26: Download PDF
3. If A and B are two matrices of the order 3 × m and 3 × n, respectively, and m = n, then the order of matrix (5A – 2B) is
(a) m x 3
(b) 3 x 3
(c) m x n
(d) 3 x n
4. The number of all possible matrices of order 3 x 3 with each entry 0 or 1 is
(a) 27
(b) 18
(c) 81
(d) 512
Also Check: NCERT Solutions for Class 12 Maths PDF: Updated for 2025-26
5. If A and B are symmetric matrices of the same order, then (AB′–BA′) is a
(a) Skew symmetric matrix
(b) Null matrix
(c) Symmetric matrix
(d) None of these
6. Matrices A and B will be inverse of each other only if:
(a) AB = BA
(b) AB-BA = 0
(c) AB = 0, BA = I
(d) AB = BA = I
7. If A = [aij] is a square matrix of order 2 such that aij = 1, when i ≠ j and aij = 0, when i = j, then A2 is
Related: CBSE Class 12 Maths Sample Paper 2025-26, Download Model Paper PDF FREE
8: 
(a) identity matrix
(b) symmetric matrix
(c) skew-symmetric matrix
(d) none of these
9. If A = 
is a symmetric matrix then x is
(a) 3
(b) 6
(c) 8
(d) 0
10. 
(a) 28/3
(b) 32/3
(c) 34/3
(d) 10
11.
(a) A
(b) B
(c) 0
(d) I
12.
13. A is a 3 × 4 matrix. A matrix B is such that A'B and BA' are defined. Then the order of B is
(a) 4 × 3
(b) 3 × 3
(c) 4 × 4
(d) 3 × 4
14. How many 2x2 order matrices can be formed with entries 0 and 1 only.
(a) 8
(b) 16
(c) 4
(d) 32
15. 
Answers
| Question Number | Answers |
| 1 | (b) [7 13 8] |
| 2 | (a) I |
| 3 | (d) 3 x n |
| 4 | (d) 512 |
| 5 | (a) Skew-symmetric matrix |
| 6 | (d) AB = BA = I |
| 7 | (d) |
| 8 | (b) Symmetric matrix |
| 9 | (b) 6 |
| 10 | (b) 32/3 |
| 11 | (b) B |
| 12 | (c) 0 |
| 13 | (d) 3x4 |
| 14 | (b) 16 |
| 15 | (b)-2 or 10 |
As the exams are nearing soon, students are advised to practice Maths MCQs for each chapter every day. This can help you build momentum in solving all sorts of questions and it will also boost your confidence.
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