Class 12 Biology Online Mock Tests (2025-26)

Check your exam preparation with our interactive Class 12 Biology online mock tests. Designed for the latest CBSE session. These online practice exams provide instant scores and test results to help you prepare for Class 12 exams. This free online mock test series helps students to attempt Biology chapter tests one by one. Each test is designed to check your understanding and Class 12 exam readiness.

Chapter-wise Self-Assessment Tests for Class 12 Biology

Take our free online test series to check your knowledge of the NCERT Class 12 Biology book developed by subject matter experts. These tests provide instant scores and answers based on the latest marking scheme to help you score higher in Class 12 exams. These mock tests for Biology are designed just like the actual Class 12 exam environment, helping you manage time and improve accuracy for Class 12 exams. These Class 12 Biology online mock tests are prepared strictly as per the latest CBSE 2025-26 syllabus and NCERT textbooks.

Class 12 Biology Online Mock Test

Click on the Biology chapter-wise links below to access free online mock tests with answers as per the latest Class 12 2025-26 syllabus. Use the navigation below to jump directly to the chapter for faster revision.

Biology Class 12 Chapter wise navigation

Chapter 04 Principles of Inheritance and Variation
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set A
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set B
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set C
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set D
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set E
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set F
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set F
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set G
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set H
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set I
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set J
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set K
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set L
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set M
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set N
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set O
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set P
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set Q
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set R
CBSE Class 12 Biology Principle of Inheritance and Variation Online Test Set S
Chapter 07 Human Health and Disease
CBSE Class 12 Biology Human Health and Diseases Online Test Set A
CBSE Class 12 Biology Human Health and Diseases Online Test Set B
CBSE Class 12 Biology Human Health and Diseases Online Test Set C
CBSE Class 12 Biology Human Health and Diseases Online Test Set D
CBSE Class 12 Biology Human Health and Diseases Online Test Set E
CBSE Class 12 Biology Human Health and Diseases Online Test Set F
CBSE Class 12 Biology Human Health and Diseases Online Test Set G
CBSE Class 12 Biology Human Health and Diseases Online Test Set H
CBSE Class 12 Biology Human Health and Diseases Online Test Set I
CBSE Class 12 Biology Human Health and Diseases Online Test Set J
CBSE Class 12 Biology Human Health and Diseases Online Test Set K
CBSE Class 12 Biology Human Health and Diseases Online Test Set L
CBSE Class 12 Biology Human Health and Diseases Online Test Set M
CBSE Class 12 Biology Human Health and Diseases Online Test Set N
CBSE Class 12 Biology Human Health and Diseases Online Test Set O
CBSE Class 12 Biology Human Health and Diseases Online Test Set P
CBSE Class 12 Biology Human Health and Diseases Online Test Set Q
CBSE Class 12 Biology Human Health and Diseases Online Test Set R
CBSE Class 12 Biology Human Health and Diseases Online Test Set S
CBSE Class 12 Biology Human Health and Diseases Online Test Set T
CBSE Class 12 Biology Respiration Online Test Set A
CBSE Class 12 Biology Respiration Online Test Set B
CBSE Class 12 Biology Respiration Online Test Set C
CBSE Class 12 Biology Respiration Online Test Set D
CBSE Class 12 Biology Respiration Online Test Set E
How do I access the 2025-26 Class 12 Biology Online Mock Tests?

You can start the latest Biology mock tests for Class 12 by selecting your chapter from the links above. These tests are free, dont need login and are optimized for the 2025-26 academic session.

Are the Class 12 online tests based on the new CBSE MCQ pattern?

Yes, our Biology online tests are strictly as per the latest CBSE pattern with 20% MCQ weightage and main focus on competency-based and case-study questions.

Can I see my score and answers instantly after the Biology test?

After submitting your Class 12 Biology test, you can see score report and correct/incorrect answers.

Is there a limit to how many times I can attempt these Class 12 mock tests?

There are no limits. You can re-attempt any Biology online test as many times for free, master concepts, improve your speed and accuracy.

Do these Class 12 Biology tests work on smartphones?

Yes, the StudiesToday online test platform is mobile-first. Class 12 Biology students can take these tests on any smartphone.

How do online mock tests help in Class 12 Biology exam preparation?

Online tests help Class 12 students build confidence and time management. By solving above tests MCQs you can apply theoretical knowledge which is important for 2026 exams.