About this test series

NIOS (Open Schooling) Class 12 Science (2026–27 session): chapter-wise tests for Physics, Chemistry, Mathematics, Biology, English, a full test for every subject and board-pattern mock papers. National Institute of Open Schooling: Secondary (Class 10) and Senior Secondary (Class 12) with flexible on-demand and public exams. The board has its own textbooks; tests cover the core chapters common to its syllabus and NCERT.

+1Marks per correct

NoneNegative marking

33%Pass mark

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Syllabus coverage 5 subjects

Subject	Questions	Marks	Share
Mathematics	175	175	22%
English	173	173	22%
Biology	155	155	20%
Physics	145	145	18%
Chemistry	145	145	18%

Tests in this series 40 tests + 1 free demo

Free demo

Free Demo Test

A free sample of NIOS (Open Schooling) Class 12 Science questions.

10 min 10 Qs 10 marks No negative 3 attempts

Biology 2 · Chemistry 2 · English 2 · Mathematics 2 · Physics 2

Easy 7 Medium 2 Hard 1

Test 1 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 1

Objective board-pattern paper covering Physics, Chemistry, Mathematics, Biology, English: 50 questions.

60 min 50 Qs 50 marks No negative 3 attempts

Biology 10 · Chemistry 10 · English 10 · Mathematics 10 · Physics 10

Easy 22 Medium 22 Hard 6

Test 2 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 2

Objective board-pattern paper covering Physics, Chemistry, Mathematics, Biology, English: 50 questions.

60 min 50 Qs 50 marks No negative 3 attempts

Biology 10 · Chemistry 10 · English 10 · Mathematics 10 · Physics 10

Easy 22 Medium 22 Hard 6

Test 3 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 3

Objective board-pattern paper covering Physics, Chemistry, Mathematics, Biology, English: 50 questions.

60 min 50 Qs 50 marks No negative 3 attempts

Biology 10 · Chemistry 10 · English 10 · Mathematics 10 · Physics 10

Easy 25 Medium 20 Hard 5

Sectional test

Test 4 · Physics – Full Subject Test

30 questions across all chapters of NIOS (Open Schooling) Class 12 Science Physics.

36 min 30 Qs 30 marks No negative 3 attempts

Easy 14 Medium 15 Hard 1

Sectional test

Test 5 · Chemistry – Full Subject Test

30 questions across all chapters of NIOS (Open Schooling) Class 12 Science Chemistry.

36 min 30 Qs 30 marks No negative 3 attempts

Easy 13 Medium 15 Hard 2

Sectional test

Test 6 · Mathematics – Full Subject Test

30 questions across all chapters of NIOS (Open Schooling) Class 12 Science Mathematics.

36 min 30 Qs 30 marks No negative 3 attempts

Easy 7 Medium 13 Hard 10

Sectional test

Test 7 · Biology – Full Subject Test

30 questions across all chapters of NIOS (Open Schooling) Class 12 Science Biology.

36 min 30 Qs 30 marks No negative 3 attempts

Easy 17 Medium 11 Hard 2

Sectional test

Test 8 · English – Full Subject Test

30 questions across all chapters of NIOS (Open Schooling) Class 12 Science English.

36 min 30 Qs 30 marks No negative 3 attempts

Easy 9 Medium 16 Hard 5

Topic-wise test

Test 9 · Physics: Current Electricity

Chapter-wise test – Current Electricity (NIOS (Open Schooling) Class 12 Science Physics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 4 Medium 11 Hard 0

Topic-wise test

Test 10 · Physics: Optics

Chapter-wise test – Optics (NIOS (Open Schooling) Class 12 Science Physics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 11 Hard 4

Topic-wise test

Test 11 · Physics: Dual Nature, Atoms & Nuclei

Chapter-wise test – Dual Nature, Atoms & Nuclei (NIOS (Open Schooling) Class 12 Science Physics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 9 Medium 6 Hard 0

Topic-wise test

Test 12 · Physics: Electronic Devices

Chapter-wise test – Electronic Devices (NIOS (Open Schooling) Class 12 Science Physics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 11 Medium 4 Hard 0

Topic-wise test

Test 13 · Physics: Board Pattern Practice

Board-exam style questions for NIOS (Open Schooling) Class 12 Science Physics.

18 min 15 Qs 15 marks No negative 3 attempts

Easy 9 Medium 5 Hard 1

Topic-wise test

Test 14 · Chemistry: Solutions & Electrochemistry

Chapter-wise test – Solutions & Electrochemistry (NIOS (Open Schooling) Class 12 Science Chemistry).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 15 Hard 0

Topic-wise test

Test 15 · Chemistry: Organic Compounds (Haloalkanes to Amines)

Chapter-wise test – Organic Compounds (Haloalkanes to Amines) (NIOS (Open Schooling) Class 12 Science Chemistry).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 7 Medium 7 Hard 1

Topic-wise test

Test 16 · Chemistry: Biomolecules & Everyday Chemistry

Chapter-wise test – Biomolecules & Everyday Chemistry (NIOS (Open Schooling) Class 12 Science Chemistry).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 8 Medium 7 Hard 0

Topic-wise test

Test 17 · Chemistry: Coordination & d-block (concepts)

Chapter-wise test – Coordination & d-block (concepts) (NIOS (Open Schooling) Class 12 Science Chemistry).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 12 Medium 3 Hard 0

Topic-wise test

Test 18 · Chemistry: Board Pattern Practice

Board-exam style questions for NIOS (Open Schooling) Class 12 Science Chemistry.

18 min 15 Qs 15 marks No negative 3 attempts

Easy 5 Medium 7 Hard 3

Topic-wise test

Test 19 · Mathematics: Matrices & Determinants

Chapter-wise test – Matrices & Determinants (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 9 Medium 6 Hard 0

Topic-wise test

Test 20 · Mathematics: 3 × 3 Determinants & Inverse

Chapter-wise test – 3 × 3 Determinants & Inverse (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 0 Hard 15

Topic-wise test

Test 21 · Mathematics: Continuity, Differentiation & Applications

Chapter-wise test – Continuity, Differentiation & Applications (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 5 Medium 0 Hard 10

Topic-wise test

Test 22 · Mathematics: Integrals & Applications

Chapter-wise test – Integrals & Applications (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 15 Hard 0

Topic-wise test

Test 23 · Mathematics: Vectors & Three-Dimensional Geometry

Chapter-wise test – Vectors & Three-Dimensional Geometry (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 15 Medium 0 Hard 0

Topic-wise test

Test 24 · Mathematics: Linear Programming & Probability

Chapter-wise test – Linear Programming & Probability (NIOS (Open Schooling) Class 12 Science Mathematics).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 15 Hard 0

Topic-wise test

Test 25 · Mathematics: Board Pattern Practice

Board-exam style questions for NIOS (Open Schooling) Class 12 Science Mathematics.

18 min 15 Qs 15 marks No negative 3 attempts

Easy 9 Medium 5 Hard 1

Topic-wise test

Test 26 · Biology: Reproduction

Chapter-wise test – Reproduction (NIOS (Open Schooling) Class 12 Science Biology).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 8 Medium 5 Hard 2

Topic-wise test

Test 27 · Biology: Genetics & Evolution

Chapter-wise test – Genetics & Evolution (NIOS (Open Schooling) Class 12 Science Biology).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 6 Medium 7 Hard 2

Topic-wise test

Test 28 · Biology: Biology in Human Welfare

Chapter-wise test – Biology in Human Welfare (NIOS (Open Schooling) Class 12 Science Biology).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 15 Hard 0

Topic-wise test

Test 29 · Biology: Biotechnology

Chapter-wise test – Biotechnology (NIOS (Open Schooling) Class 12 Science Biology).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 5 Medium 9 Hard 1

Topic-wise test

Test 30 · Biology: Ecology & Environment

Chapter-wise test – Ecology & Environment (NIOS (Open Schooling) Class 12 Science Biology).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 10 Medium 4 Hard 1

Topic-wise test

Test 31 · Biology: Board Pattern Practice

Board-exam style questions for NIOS (Open Schooling) Class 12 Science Biology.

18 min 10 Qs 10 marks No negative 3 attempts

Easy 4 Medium 5 Hard 1

Topic-wise test

Test 32 · English: Grammar

Chapter-wise test – Grammar (NIOS (Open Schooling) Class 12 Science English).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 6 Medium 6 Hard 3

Topic-wise test

Test 33 · English: Vocabulary: Synonyms & Antonyms

Chapter-wise test – Vocabulary: Synonyms & Antonyms (NIOS (Open Schooling) Class 12 Science English).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 3 Medium 8 Hard 4

Topic-wise test

Test 34 · English: Idioms & One-word Substitution

Chapter-wise test – Idioms & One-word Substitution (NIOS (Open Schooling) Class 12 Science English).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 0 Medium 15 Hard 0

Topic-wise test

Test 35 · English: Spelling

Chapter-wise test – Spelling (NIOS (Open Schooling) Class 12 Science English).

18 min 1 Qs 1 marks No negative 3 attempts

Easy 0 Medium 1 Hard 0

Topic-wise test

Test 36 · English: Error Spotting & Sentence Improvement

Chapter-wise test – Error Spotting & Sentence Improvement (NIOS (Open Schooling) Class 12 Science English).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 7 Medium 4 Hard 4

Topic-wise test

Test 37 · English: Voice & Narration

Chapter-wise test – Voice & Narration (NIOS (Open Schooling) Class 12 Science English).

18 min 15 Qs 15 marks No negative 3 attempts

Easy 7 Medium 7 Hard 1

Topic-wise test

Test 38 · English: Reading Comprehension

Chapter-wise test – Reading Comprehension (NIOS (Open Schooling) Class 12 Science English).

18 min 12 Qs 12 marks No negative 3 attempts

Easy 6 Medium 6 Hard 0

Topic-wise test

Test 39 · English: Board Pattern Practice

Board-exam style questions for NIOS (Open Schooling) Class 12 Science English.

18 min 15 Qs 15 marks No negative 3 attempts

Easy 1 Medium 10 Hard 4

Previous year pattern

Test 40 · NIOS (Open Schooling) Class 12 Science Previous Year Pattern Paper

Questions on the topics board papers ask year after year, in the 2026 pattern. Original practice questions.

60 min 50 Qs 50 marks No negative 3 attempts

Biology 10 · Chemistry 10 · English 10 · Mathematics 10 · Physics 10

Easy 22 Medium 25 Hard 3

What you get in the exam window

Question paletteAnswered, not answered, marked for review and not visited, colour-coded like the real CBT.

Section-wise navigationJump between sections with the marks for each question shown.

Rough notesA scratch pad for working out answers during the test.

Auto-saveAnswers survive a refresh, and the test submits itself when time runs out.

Detailed resultScore, rank, percentile, section-wise accuracy and answer review.

₹149

One-time payment for all 40 tests, valid for 1 year.

This series includes
40 tests, 793 questions
3 full mock tests
5 sectional tests
31 topic-wise tests
1 previous year paper
1 free demo test to try first
5 subjects covered
Real exam timing and marking scheme
Answer review with explanations
Rank, percentile and section analysis

About this test series

Syllabus coverage 5 subjects

Tests in this series 40 tests + 1 free demo

Free Demo Test

Test 1 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 1

Test 2 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 2

Test 3 · NIOS (Open Schooling) Class 12 Science Board Pattern Mock Test 3

Test 4 · Physics – Full Subject Test

Test 5 · Chemistry – Full Subject Test

Test 6 · Mathematics – Full Subject Test

Test 7 · Biology – Full Subject Test

Test 8 · English – Full Subject Test

Test 9 · Physics: Current Electricity

Test 10 · Physics: Optics

Test 11 · Physics: Dual Nature, Atoms & Nuclei

Test 12 · Physics: Electronic Devices

Test 13 · Physics: Board Pattern Practice

Test 14 · Chemistry: Solutions & Electrochemistry

Test 15 · Chemistry: Organic Compounds (Haloalkanes to Amines)

Test 16 · Chemistry: Biomolecules & Everyday Chemistry

Test 17 · Chemistry: Coordination & d-block (concepts)

Test 18 · Chemistry: Board Pattern Practice

Test 19 · Mathematics: Matrices & Determinants

Test 20 · Mathematics: 3 × 3 Determinants & Inverse

Test 21 · Mathematics: Continuity, Differentiation & Applications

Test 22 · Mathematics: Integrals & Applications

Test 23 · Mathematics: Vectors & Three-Dimensional Geometry

Test 24 · Mathematics: Linear Programming & Probability

Test 25 · Mathematics: Board Pattern Practice

Test 26 · Biology: Reproduction

Test 27 · Biology: Genetics & Evolution

Test 28 · Biology: Biology in Human Welfare

Test 29 · Biology: Biotechnology

Test 30 · Biology: Ecology & Environment

Test 31 · Biology: Board Pattern Practice

Test 32 · English: Grammar

Test 33 · English: Vocabulary: Synonyms & Antonyms

Test 34 · English: Idioms & One-word Substitution

Test 35 · English: Spelling

Test 36 · English: Error Spotting & Sentence Improvement

Test 37 · English: Voice & Narration

Test 38 · English: Reading Comprehension

Test 39 · English: Board Pattern Practice

Test 40 · NIOS (Open Schooling) Class 12 Science Previous Year Pattern Paper

What you get in the exam window

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