Junior college (Class 11-12)

West Bengal Board - Class 11 previous year questions (PYQ)

4,171 previous year West Bengal Board - Class 11 questions, grouped by year, with answers and solutions.

2026 (1221 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Powerhouse of the eukaryotic cell responsible for cellular respiration and ATP synthesis.

(A)
Lysosomes, digesting cellular debris
(B)
Golgi apparatus, packaging lipids
(C)
Ribosomes, synthesizing proteins
(D)
Mitochondria, containing enzymes for the Krebs cycle and oxidative phosphorylation
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Q2.
Calculate 12 × 7.

(A)
84
(B)
96
(C)
77
(D)
86
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2025 (206 questions)

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

(A)
Diffraction of light by interstellar dust
(B)
Dispersion of light by water droplets
(C)
Atmospheric refraction of starlight through turbulent air layers of varying refractive indices
(D)
Total internal reflection inside clouds
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Q2.
In Chemistry, examine the topic of Catalyst used in the Haber-Bosch process for industrial synthesis of Ammonia ($N_2 + 3H_2 \rightleftharpoons 2NH_3$). Which statement is scientifically accurate?

(A)
Nickel (Ni) in Raney form
(B)
Platinum gauze (Pt)
(C)
Vanadium pentoxide (V2O5)
(D)
Finely divided Iron (Fe) with Molybdenum (Mo) or K2O/Al2O3 as promoter
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2024 (588 questions)

Q1.
What is 94 minus 21?

(A)
74
(B)
72
(C)
78
(D)
73
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Q2.

Higher Academic Core: In advanced conceptual study of 'Kinematics (Motion in Straight Line and Plane)' in Mechanics & General Physics, which foundational mechanism is universally verified?

(A)

Empirically validated biological, physical, or social dynamics following standard scientific methodology (Kinematics (Motion in Straight Line and Plane))

(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 (530 questions)

Q1.

Paragraph & Story Writing: What is the proper opening sentence for a story about 'Mechanical Properties of Solids and Fluids (Elasticity, Viscosity, Bernoulli)'?


(A)
Once upon a time or On a bright sunny morning with clear narrative setting (Mechanical Properties of Solids and Fluids (Elasticity, Viscosity, Bernoulli))
(B)
Ending line first
(C)
Grammatical fragments
(D)
None of the above
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Q2.
In Physics, consider the Conservation principle underlying Kirchhoff's Junction Rule (Current Law). Which statement correctly defines this principle?

(A)
Conservation of Energy
(B)
Conservation of Electric Charge ($\sum I_{\text{in}} = \sum I_{\text{out}}$)
(C)
Conservation of Linear Momentum
(D)
Conservation of Angular Momentum
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2022 (210 questions)

Q1.
In Chemistry, examine the topic of Functional group present in all Carboxylic Acids. Which statement is scientifically accurate?

(A)
CHO (Formyl group)
(B)
CO- (Carbonyl ketone group)
(C)
OH (Alcoholic hydroxyl group)
(D)
COOH (Carboxyl group composed of carbonyl and hydroxyl groups)
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Q2.
In Physics, consider the Condition for Total Internal Reflection (TIR) to occur at an interface. Which statement correctly defines this principle?

(A)
Light must be monochromatic and linearly polarized
(B)
Light must travel from an optically denser to rarer medium and angle of incidence must exceed critical angle ($i > i_c$)
(C)
Angle of incidence must equal angle of refraction ($i = r$)
(D)
Light travels from rarer to denser medium with $i < i_c$
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2021 (190 questions)

Q1.
In Physics, consider the de Broglie wavelength associated with a particle of mass $m$ moving with velocity $v$. Which statement correctly defines this principle?

(A)
\lambda = \frac{h}{2mv^2}
(B)
\lambda = \frac{mv}{h}
(C)
\lambda = \frac{h}{mv} = \frac{h}{p}
(D)
\lambda = hp
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Q2.

Butterfly (West Bengal Primary English): What is the central moral in 'Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT)'?


(A)
Bravery, friendship, patriotism and truthfulness (Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT))
(B)
Cowardice and deceit
(C)
Disrespecting elders
(D)
None of the above
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2020 (189 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 value of $\sin\theta$ cannot exceed 1 for any real angle $\theta$.

Reason (R): In any right-angled triangle, the hypotenuse is the strictly longest side, ensuring the ratio $\text{Perpendicular}/\text{Hypotenuse} \le 1$.


(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.
Calculate 6 × 6.

(A)
42
(B)
38
(C)
30
(D)
36
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2019 (201 questions)

Q1.

Subject-Verb Agreement (Class 5 Standard): What is the grammatically correct agreement for 'Gravitation (Kepler's Laws, Orbital Motion)'?


(A)
Singular subject takes singular verb; plural subject takes plural verb (Gravitation (Kepler's Laws, Orbital Motion))
(B)
Plural verb with singular subject
(C)
Omission of main verb
(D)
None of the above
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Q2.

Subject-Verb Agreement (Class 5 Standard): What is the grammatically correct agreement for 'Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT)'?


(A)
Singular subject takes singular verb; plural subject takes plural verb (Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT))
(B)
Plural verb with singular subject
(C)
Omission of main verb
(D)
None of the above
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2018 (194 questions)

Q1.

Paragraph & Story Writing: What is the proper opening sentence for a story about 'Motion of System of Particles and Rigid Body (Moment of Inertia)'?


(A)
Once upon a time or On a bright sunny morning with clear narrative setting (Motion of System of Particles and Rigid Body (Moment of Inertia))
(B)
Ending line first
(C)
Grammatical fragments
(D)
None of the above
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Q2.
In Physics, consider the Work-Energy Theorem statement for a particle. Which statement correctly defines this principle?

(A)
Work done equals change in potential energy only
(B)
Work done equals rate of change of momentum
(C)
Work done is always zero under variable forces
(D)
Work done by all forces acting on a particle equals the change in its kinetic energy ($W = \Delta K$)
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2017 (213 questions)

Q1.

ভগ্নাংশ ও দশমিক (Fractions - 5th Standard): 'Straight Lines and Conic Sections (Circle, Parabola, Ellipse, Hyperbola)'-এর সমতুল্য ভগ্নাংশ বা দশমিক রূপ কী?


(A)
লব ও হরের অনুপাত অনুযায়ী সঠিক মান ($Straight Lines and Conic Sections (Circle, Parabola, Ellipse, Hyperbola)$)
(B)
হর শূন্য বিশিষ্ট ভগ্নাংশ
(C)
সবসময় ঋণাত্মক
(D)
কোনোটিই নয়
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Q2.
In Physics, consider the Newton's second law of motion mathematical formulation. Which statement correctly defines this principle?

(A)
Force equals mass divided by acceleration ($F = m/a$)
(B)
Force equals rate of change of linear momentum ($F = \frac{dp}{dt} = ma$)
(C)
Force equals momentum multiplied by velocity
(D)
Force equals change in kinetic energy
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2016 (213 questions)

Q1.

Vocabulary: Find the correct antonym or rhyming word for 'Classification of Elements and Periodicity':


(A)
Accurate contextual antonym or phonetic rhyme (Classification of Elements and Periodicity)
(B)
Irrelevant word
(C)
Spelling error
(D)
None of the above
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Q2.
In Physics, consider the Faraday's Law of Electromagnetic Induction equation. Which statement correctly defines this principle?

(A)
\mathcal{E} = -N \frac{d\Phi_B}{dt}, where negative sign represents Lenz's Law
(B)
\mathcal{E} = N \Phi_B t
(C)
\mathcal{E} = -\frac{N}{d\Phi_B/dt}
(D)
\mathcal{E} = N I R
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2015 (216 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): Noble gases possess positive or zero electron gain enthalpy.

Reason (R): Noble gases have completely filled stable electronic valence shell configurations ($ns^2 np^6$).


(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.
In Chemistry, examine the topic of pH of a neutral aqueous solution at 25°C (298 K). Which statement is scientifically accurate?

(A)
pH = 0
(B)
pH = 7, where [H^+] = [OH^-] = 10^{-7} \text{ M}
(C)
pH = 1
(D)
pH = 14
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