Junior college (Class 11-12)

CISCE Board - ISC Class 11 previous year questions (PYQ)

5,456 previous year CISCE Board - ISC Class 11 questions, grouped by year, with answers and solutions.

2026 (1964 questions)

Q1.
What is 39 minus 21?

(A)
19
(B)
18
(C)
17
(D)
23
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Q2.
In Biological Sciences, identify the accurate description regarding Primary photosynthetic pigment responsible for absorbing blue and red light wavelengths.

(A)
Carotenoids
(B)
Phycobilin
(C)
Chlorophyll a
(D)
Anthocyanin
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2025 (280 questions)

Q1.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

What measure of financial compensation did the Supreme Court establish in the M.C. Mehta Oleum Gas case?


(A)
The measure of damages must be exemplary and correlated to the financial magnitude and wealth of the enterprise
(B)
Damages are strictly limited to verified hospital pharmacy bills
(C)
Damages are paid exclusively from the State disaster relief treasury
(D)
No financial compensation is awarded without a formal criminal conviction
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

Which statutory enactment was passed by the Indian Parliament following the Bhopal gas disaster and oleum gas leak?


(A)
The Environment (Protection) Act, 1986
(B)
The Factories Act, 1948
(C)
The Wildlife Protection Act, 1972
(D)
The Indian Penal Code, 1860
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2024 (795 questions)

Q1.

Higher Academic Core: In advanced conceptual study of 'Structure of Atom: Bohr's Model, de Broglie Relation, Heisenberg Principle and Quantum Numbers' in Inorganic, Physical & Organic Chemistry, which foundational mechanism is universally verified?

(A)

Empirically validated biological, physical, or social dynamics following standard scientific methodology (Structure of Atom: Bohr's Model, de Broglie Relation, Heisenberg Principle and Quantum Numbers)

(B)

Unsubstantiated speculative claims lacking experimental replication or peer verification

(C)

Deterministic models that reject thermodynamic entropy and stochastic variance

(D)

Isolated observations taken under non-standard uncontrolled environmental extremes

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Q2.

Higher Academic Core: In advanced conceptual study of 'Structural Organisation in Animals and Plants: Plant Anatomy and Cockroach Morphology' in Diversity, Cytology & Human Physiology, which foundational mechanism is universally verified?

(A)

Empirically validated biological, physical, or social dynamics following standard scientific methodology (Structural Organisation in Animals and Plants: Plant Anatomy and Cockroach Morphology)

(B)

Unsubstantiated speculative claims lacking experimental replication or peer verification

(C)

Deterministic models that reject thermodynamic entropy and stochastic variance

(D)

Isolated observations taken under non-standard uncontrolled environmental extremes

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2023 (268 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): A convex mirror is commonly used as a driver's rear-view mirror in automobiles.

Reason (R): A convex mirror always forms an erect, virtual, and diminished image, providing a much wider field of view.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Electric current in a conductor is treated as a scalar physical quantity.

Reason (R): Although electric current has both magnitude and direction, it does not obey the laws of vector addition.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2022 (274 questions)

Q1.
In Physics, consider the Phenomenon responsible for the twinkling of stars in the night sky. Which statement correctly defines this principle?

(A)
Atmospheric refraction of starlight through turbulent air layers of varying refractive indices
(B)
Dispersion of light by water droplets
(C)
Total internal reflection inside clouds
(D)
Diffraction of light by interstellar dust
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Q2.
What is 50 minus 37?

(A)
13
(B)
12
(C)
14
(D)
18
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2021 (260 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Danger signals on communication towers and traffic posts are always illuminated in red color.

Reason (R): Red light has the longest wavelength in the visible spectrum and suffers minimum Rayleigh scattering ($I \propto 1/\lambda^4$) through fog and smoke.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): A convex mirror is commonly used as a driver's rear-view mirror in automobiles.

Reason (R): A convex mirror always forms an erect, virtual, and diminished image, providing a much wider field of view.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2020 (261 questions)

Q1.
In Social Science / Indian Studies, identify the historically and geographically correct fact regarding Article of the Indian Constitution known as the 'Heart and Soul of the Constitution' (Right to Constitutional Remedies).

(A)
Article 21 (Protection of Life and Personal Liberty)
(B)
Article 14 (Equality before Law)
(C)
Article 32, empowering citizens to approach the Supreme Court via writs (Habeas Corpus, Mandamus, etc.)
(D)
Article 19 (Right to Freedom)
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Q2.
In Chemistry, examine the topic of Oxidation state of Manganese in Potassium Permanganate ($KMnO_4$). Which statement is scientifically accurate?

(A)
+2
(B)
+6
(C)
+7
(D)
+4
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2019 (270 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): A convex mirror is commonly used as a driver's rear-view mirror in automobiles.

Reason (R): A convex mirror always forms an erect, virtual, and diminished image, providing a much wider field of view.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Electric current in a conductor is treated as a scalar physical quantity.

Reason (R): Although electric current has both magnitude and direction, it does not obey the laws of vector addition.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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2018 (269 questions)

Q1.
In Business Studies and Accountancy, what is the core principle governing Accounting equation that forms the basis of the Balance Sheet?

(A)
Capital = Assets + Liabilities
(B)
Assets = Liabilities - Capital
(C)
Assets = Liabilities + Owner's Equity (Capital)
(D)
Liabilities = Assets + Capital
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Q2.
In Biological Sciences, identify the accurate description regarding Primary photosynthetic pigment responsible for absorbing blue and red light wavelengths.

(A)
Carotenoids
(B)
Anthocyanin
(C)
Chlorophyll a
(D)
Phycobilin
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2017 (267 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): Electric current in a conductor is treated as a scalar physical quantity.

Reason (R): Although electric current has both magnitude and direction, it does not obey the laws of vector addition.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

What measure of financial compensation did the Supreme Court establish in the M.C. Mehta Oleum Gas case?


(A)
The measure of damages must be exemplary and correlated to the financial magnitude and wealth of the enterprise
(B)
Damages are strictly limited to verified hospital pharmacy bills
(C)
Damages are paid exclusively from the State disaster relief treasury
(D)
No financial compensation is awarded without a formal criminal conviction
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2016 (280 questions)

Q1.
What is 71 minus 33?

(A)
38
(B)
39
(C)
43
(D)
37
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Q2.
What is the sum of 33 and 94?

(A)
137
(B)
126
(C)
127
(D)
128
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2015 (268 questions)

Q1.

Directions: In the question below, a statement of Assertion (A) is followed by a statement of Reason (R). Choose the correct option:

Assertion (A): The square root of 2 ($\sqrt{2}$) is an irrational real number.

Reason (R): The square root of any positive prime integer is an irrational number.


(A)
Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).
(B)
Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of Assertion (A).
(C)
Assertion (A) is true but Reason (R) is false.
(D)
Assertion (A) is false but Reason (R) is true.
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Q2.

Refer to the Case Study 'Case Study: Hazardous Enterprise and Supreme Court Doctrine of Absolute Liability' to answer:

What measure of financial compensation did the Supreme Court establish in the M.C. Mehta Oleum Gas case?


(A)
The measure of damages must be exemplary and correlated to the financial magnitude and wealth of the enterprise
(B)
Damages are strictly limited to verified hospital pharmacy bills
(C)
Damages are paid exclusively from the State disaster relief treasury
(D)
No financial compensation is awarded without a formal criminal conviction
Show answer & solution
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