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.

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2026 (1221 questions)

Q1.
In Chemistry, examine the topic of Periodic trend of electronegativity across a period from left to right. Which statement is scientifically accurate?

(A)
Electronegativity remains constant across representative elements
(B)
Electronegativity increases due to increase in effective nuclear charge ($Z_{\text{eff}}$) and decrease in atomic radius
(C)
Electronegativity first decreases then sharply increases
(D)
Electronegativity decreases due to shielding effect
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Q2.

Grammar (Articles & Prepositions): Choose the correct preposition for 'Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT)':


(A)
Appropriate spatial or temporal preposition (in, on, under, at - Chemical Bonding and Molecular Structure (VSEPR, Hybridisation, MOT))
(B)
Misplaced conjunction
(C)
Incorrect article
(D)
None of the above
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2025 (206 questions)

Q1.
In Chemistry, examine the topic of Gas evolved when active metals like Zinc react with dilute Hydrochloric acid. Which statement is scientifically accurate?

(A)
Chlorine gas (Cl2)
(B)
Oxygen gas (O2)
(C)
Hydrogen gas (H2), which burns with a characteristic 'pop' sound
(D)
Carbon dioxide gas (CO2)
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Q2.
In Chemistry, examine the topic of Avogadro's number and definition of one mole of a substance. Which statement is scientifically accurate?

(A)
011 \times 10^{23} particles
(B)
602 \times 10^{-19} particles
(C)
6.022 \times 10^{23} elementary entities (atoms, molecules, or ions)
(D)
6.022 \times 10^{22} particles
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2024 (588 questions)

Q1.

Grammar (Articles & Prepositions): Choose the correct preposition for 'Kinematics (Motion in Straight Line and Plane)':


(A)
Appropriate spatial or temporal preposition (in, on, under, at - Kinematics (Motion in Straight Line and Plane))
(B)
Misplaced conjunction
(C)
Incorrect article
(D)
None of the above
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Q2.

Grammar (Articles & Prepositions): Choose the correct preposition for 'Kinematics (Motion in Straight Line and Plane)':


(A)
Appropriate spatial or temporal preposition (in, on, under, at - Kinematics (Motion in Straight Line and Plane))
(B)
Misplaced conjunction
(C)
Incorrect article
(D)
None of the above
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2023 (530 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Structural and functional filtration unit of the human kidney.

(A)
Alveolus
(B)
Hepatic lobule
(C)
Nephron, consisting of glomerulus, Bowman's capsule, and renal tubule
(D)
Neuron
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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)
Vanadium pentoxide (V2O5)
(B)
Nickel (Ni) in Raney form
(C)
Platinum gauze (Pt)
(D)
Finely divided Iron (Fe) with Molybdenum (Mo) or K2O/Al2O3 as promoter
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2022 (210 questions)

Q1.
What is 66 minus 61?

(A)
10
(B)
4
(C)
5
(D)
6
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Q2.

ভগ্নাংশ ও দশমিক (Fractions - 5th Standard): 'Trigonometric Functions and Compound Angles'-এর সমতুল্য ভগ্নাংশ বা দশমিক রূপ কী?


(A)
লব ও হরের অনুপাত অনুযায়ী সঠিক মান ($Trigonometric Functions and Compound Angles$)
(B)
হর শূন্য বিশিষ্ট ভগ্নাংশ
(C)
সবসময় ঋণাত্মক
(D)
কোনোটিই নয়
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2021 (190 questions)

Q1.
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)
Finely divided Iron (Fe) with Molybdenum (Mo) or K2O/Al2O3 as promoter
(C)
Platinum gauze (Pt)
(D)
Vanadium pentoxide (V2O5)
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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)
Light travels from rarer to denser medium with $i < i_c$
(D)
Angle of incidence must equal angle of refraction ($i = r$)
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2020 (189 questions)

Q1.
Calculate 6 × 4.

(A)
26
(B)
24
(C)
20
(D)
30
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Q2.
What is 88 minus 81?

(A)
12
(B)
8
(C)
7
(D)
6
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2019 (201 questions)

Q1.
In Biological Sciences, identify the accurate description regarding Process by which green plants release water vapor into the atmosphere primarily through stomata.

(A)
Respiration
(B)
Transpiration, which drives sap ascent and cools plant tissues
(C)
Guttation
(D)
Imbibition
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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 I R
(B)
\mathcal{E} = -N \frac{d\Phi_B}{dt}, where negative sign represents Lenz's Law
(C)
\mathcal{E} = N \Phi_B t
(D)
\mathcal{E} = -\frac{N}{d\Phi_B/dt}
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2018 (194 questions)

Q1.
What is 76 minus 38?

(A)
38
(B)
43
(C)
39
(D)
37
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Q2.

মানবদেহ ও রোগপ্রতিরোধ (5th EVS): 'Human Physiology (Digestion, Breathing, Body Fluids and Circulation, Excretion, Locomotion, Neural and Chemical Coordination)' অঙ্গ বা পেশির প্রধান কাজ কী?


(A)
হাড়কে রক্ষা করা, রক্ত সঞ্চালন অথবা ফুসফুসের মাধ্যমে শ্বাসকার্য পরিচালনা (Human Physiology (Digestion, Breathing, Body Fluids and Circulation, Excretion, Locomotion, Neural and Chemical Coordination))
(B)
ফুসফুস রক্ত পাম্প করে
(C)
দেহে কোনো অস্থিসন্ধি নেই
(D)
কোনোটিই নয়
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2017 (213 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): Money serves as an indispensable medium of exchange in modern market economies.

Reason (R): Money eliminates the need for double coincidence of wants inherent in barter trade systems.


(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 Avogadro's number and definition of one mole of a substance. Which statement is scientifically accurate?

(A)
6.022 \times 10^{23} elementary entities (atoms, molecules, or ions)
(B)
011 \times 10^{23} particles
(C)
6.022 \times 10^{22} particles
(D)
602 \times 10^{-19} particles
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2016 (213 questions)

Q1.
What is 76 minus 39?

(A)
42
(B)
37
(C)
36
(D)
38
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Q2.
What is 30 minus 19?

(A)
10
(B)
16
(C)
12
(D)
11
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2015 (216 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)
OH (Alcoholic hydroxyl group)
(C)
CO- (Carbonyl ketone group)
(D)
COOH (Carboxyl group composed of carbonyl and hydroxyl groups)
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Q2.
In Physics, consider the SI unit of electric current and magnetic flux density. Which statement correctly defines this principle?

(A)
Ampere (A) and Tesla (T)
(B)
Ohm (Ω) and Henry (H)
(C)
Volt (V) and Weber (Wb)
(D)
Coulomb (C) and Gauss (G)
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