CBSE Class 8 Practice Test 2026
AI-generated CBSE Class 8 practice sets for Mathematics, Science, Social Science - History, Social Science - Geography, with scoring and explanations. Start with 30 free question credits on signup.
About the CBSE Class 8 exam
The CBSE - Class 8 (CBSE Class 8) is a cbse board examination administered in India. It is designed to assess candidates' knowledge and proficiency across 7 key subject areas including Mathematics, Science, Social Science - History, Social Science - Geography. This exam is widely recognized as an essential benchmark for students and professionals.
Use short CBSE Class 8 practice sets to identify topics to revisit. Choose a subject and difficulty, answer questions, then review the explanations. New accounts get 30 question credits; further new questions use paid credits. Retaking previously seen questions is free.
Whether you're a first-time candidate or retaking the CBSE Class 8 to improve your score, InfinityMock helps you identify your strengths and weaknesses through detailed performance analytics. Our platform covers Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi, with questions available at Easy, Medium, and Hard difficulty levels. Track your progress, review detailed explanations, and build the confidence you need to pass on exam day.
CBSE Class 8 — quick answers
What is the CBSE Class 8?
The CBSE - Class 8 (CBSE Class 8) is a cbse board examination taken in India. It assesses 7 subject areas: Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi.
Where can I find free CBSE Class 8 practice questions?
This page carries 8 free CBSE Class 8 practice questions, each with a worked explanation. No account is needed to read them. Sign up for 30 free question credits to continue with a subject practice set.
What subjects does the CBSE Class 8 cover?
Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi. On InfinityMock you can practise a single subject or take a mixed test across all 7.
How much does InfinityMock cost?
New accounts get 30 question credits free. After that, 30 credits cost $1 and 150 credits cost $5. One credit covers one new question; re-attempting a question you have already seen is always free.
CBSE Class 8 at a glance
| Exam | CBSE - Class 8 (CBSE Class 8) |
|---|---|
| Category | CBSE Board |
| Country / region | India |
| Subjects covered | 7 — Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi |
8 free CBSE Class 8 practice questions (2026)
Answer these first — no signup, no card. Every answer is explained. For more practice, sign up for 30 free question credits and choose a subject above.
-
What is the value of (2/3)³?
- 4/9
- 8/27
- 2/9
- 4/3
Show answer & explanation
Answer: B. 8/27
(2/3)³ = (2/3) * (2/3) * (2/3) = 8/27
Topic: Mathematics · medium
-
If 2x + 5 = 15, then the value of x is:
- 5
- 10
- 20
- 2
Show answer & explanation
Answer: A. 5
2x + 5 = 15 => 2x = 10 => x = 5
Topic: Mathematics · medium
-
Which of the following is a Pythagorean triplet?
- (2, 3, 4)
- (3, 4, 5)
- (4, 5, 6)
- (1, 2, 3)
Show answer & explanation
Answer: B. (3, 4, 5)
3² + 4² = 9 + 16 = 25 = 5²
Topic: Mathematics · medium
-
The area of a square is 64 cm². What is the length of its side?
- 4 cm
- 8 cm
- 16 cm
- 32 cm
Show answer & explanation
Answer: B. 8 cm
Area of square = side² => side = √64 = 8 cm
Topic: Mathematics · medium
-
What is the value of | -15 |?
- -15
- 15
- 0
- 1
Show answer & explanation
Answer: B. 15
The absolute value of a number is its distance from zero, so |-15| = 15.
Topic: Mathematics · medium
-
What is the sum of the interior angles of a quadrilateral?
- 180°
- 270°
- 360°
- 90°
Show answer & explanation
Answer: C. 360°
The sum of the interior angles of a quadrilateral is always 360°.
Topic: Mathematics · medium
-
If a die is thrown, what is the probability of getting an even number?
- 1/6
- 1/3
- 1/2
- 2/3
Show answer & explanation
Answer: C. 1/2
Even numbers on a die are 2, 4, 6. Probability = 3/6 = 1/2
Topic: Mathematics · medium
-
What is the multiplicative inverse of -5/7?
- 5/7
- 7/5
- -7/5
- -5/7
Show answer & explanation
Answer: C. -7/5
The multiplicative inverse of a number is its reciprocal with the same sign.
Topic: Mathematics · medium
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CBSE Class 8 Exam Subjects
Available practice subjects: Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi. Select a subject for focused preparation. Coverage is not a guarantee of the complete official syllabus.
📖 CBSE Class 8 Study Guide
Read our comprehensive How to Pass the CBSE Class 8 in 2026 — Complete Study Guide for expert preparation tips, study plans, and strategies.
🔗 Related Exams
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Frequently Asked Questions
Is this CBSE Class 8 practice test free?
Yes! InfinityMock offers free CBSE Class 8 practice tests with 30 complimentary credits on signup. Each AI-generated question costs 1 credit, and previously seen questions are always free to retake.
How many CBSE Class 8 practice questions are available?
InfinityMock offers AI-generated practice in Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi. One new question costs one credit; new accounts receive 30 free credits. These are independent practice questions, not official exam questions.
What subjects does the CBSE Class 8 practice test cover?
Our CBSE Class 8 mock test covers: Mathematics, Science, Social Science - History, Social Science - Geography, Social Science - Civics, English, Hindi. You can choose specific subjects or take a comprehensive test across all areas.
Does this reproduce the official CBSE Class 8 exam?
No. InfinityMock provides multiple-choice practice sets with explanations and progress tracking. Question types, timing, syllabus coverage, and scoring can differ from the official exam. Use your exam body's current syllabus and official practice materials alongside these sets.
How does the AI-powered CBSE Class 8 mock test work?
Simply select CBSE Class 8 from our exam list, choose your subject and difficulty level, and our AI instantly generates a custom mock test. After completing the test, you get detailed explanations, performance analytics, and a grade.
Can I retake the CBSE Class 8 practice test?
Absolutely! You can retake any CBSE Class 8 mock test as many times as you want. Previously seen questions are always free, so retakes cost no credits. You can also generate completely new questions each time.
What is the best way to prepare for the CBSE Class 8?
The most effective strategy is consistent practice with realistic questions. Use InfinityMock to take regular mock tests, review your wrong answers with detailed explanations, track your progress over time, and focus on your weakest subjects. Start with easy difficulty and gradually increase to hard.
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