Kerala Board - Class 11 (Plus One DHSE) previous year questions (PYQ)

2026 (1150 questions)

Q1.

In Physics, consider the Speed of electromagnetic waves in a vacuum according to Maxwell. Which statement correctly defines this principle?

(A)

c = \frac{\mu_0}{\varepsilon_0}

(B)

c = \mu_0 \varepsilon_0

(C)

c = \sqrt{\mu_0 \varepsilon_0}

(D)

c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}} \approx 3 \times 10^8 \text{ m/s}

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Q2.

Vocabulary: Find the correct synonym or rhyming word for 'Chemical Bonding and Molecular Structure':

(A)

Appropriate contextual meaning (Chemical Bonding and Molecular Structure)

(B)

Opposite meaning

(C)

Irrelevant word

(D)

None of the above

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2025 (210 questions)

Q1.

In Chemistry, examine the topic of Oxidation state of Manganese in Potassium Permanganate ($KMnO_4$). Which statement is scientifically accurate?

(A)

+6

(B)

+7

(C)

+4

(D)

+2

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Q2.

In Chemistry, examine the topic of Reagent used to distinguish between aldehydes and ketones. Which statement is scientifically accurate?

(A)

Lucas reagent

(B)

Tollens' reagent (Ammoniacal Silver Nitrate) which gives a silver mirror with aldehydes

(C)

Ninhydrin reagent

(D)

Neutral FeCl3 solution

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2024 (630 questions)

Q1.

English (Kerala Primary Curriculum): What is the central moral theme in 'Environmental Chemistry'?

(A)

Love, compassion, empathy, and courage (Environmental Chemistry)

(B)

Selfishness and arrogance

(C)

Cruelty to animals

(D)

None of the above

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Q2.

സ്ഥാനവില (Place Value): 'Permutations and Combinations' സംഖ്യയിലെ അക്കങ്ങളുടെ ശരിയായ സ്ഥാനവില എത്രയാണ്?

(A)

ഒന്ന്, പത്ത്, നൂറ് അല്ലെങ്കിൽ ആയിരത്തിന്റെ സ്ഥാനവില (Permutations and Combinations)

(B)

എല്ലാ അക്കങ്ങൾക്കും ഒരേ വിലയാണ്

(C)

സ്ഥാനവില മാറുകയില്ല

(D)

ഇവയിലൊന്നുമല്ല

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2023 (559 questions)

Q1.

In Chemistry, examine the topic of Avogadro's number and definition of one mole of a substance. Which statement is scientifically accurate?

(A)

602 \times 10^{-19} particles

(B)

6.022 \times 10^{23} elementary entities (atoms, molecules, or ions)

(C)

011 \times 10^{23} particles

(D)

6.022 \times 10^{22} particles

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Q2.

In Physics, consider the Conservation principle underlying Kirchhoff's Loop Rule (Voltage Law). Which statement correctly defines this principle?

(A)

Conservation of Energy ($\sum \Delta V = 0$ in any closed loop)

(B)

Conservation of Magnetic Flux

(C)

Conservation of Momentum

(D)

Conservation of Charge

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2022 (184 questions)

Q1.

English (Kerala Primary Curriculum): What is the central moral theme in 'Classification of Elements and Periodicity'?

(A)

Love, compassion, empathy, and courage (Classification of Elements and Periodicity)

(B)

Selfishness and arrogance

(C)

Cruelty to animals

(D)

None of the above

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Q2.

Calculate 5 × 9.

(A)

45

(B)

36

(C)

50

(D)

47

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2021 (205 questions)

Q1.

In Biological Sciences, identify the accurate description regarding Phenotypic ratio of a classic Mendelian monohybrid cross in the F2 generation.

(A)

1 : 1 : 1 : 1

(B)

1 : 2 : 1

(C)

3 : 1 (Dominant to Recessive phenotype)

(D)

9 : 3 : 3 : 1

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Q2.

In Biological Sciences, identify the accurate description regarding Universal blood recipient group in the ABO blood typing system.

(A)

AB positive (AB+), because RBCs possess both A and B antigens and plasma lacks anti-A and anti-B antibodies

(B)

O negative (O-)

(C)

B positive (B+)

(D)

A positive (A+)

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2020 (224 questions)

Q1.

In Physics, consider the Speed of electromagnetic waves in a vacuum according to Maxwell. Which statement correctly defines this principle?

(A)

c = \frac{1}{\sqrt{\mu_0 \varepsilon_0}} \approx 3 \times 10^8 \text{ m/s}

(B)

c = \sqrt{\mu_0 \varepsilon_0}

(C)

c = \mu_0 \varepsilon_0

(D)

c = \frac{\mu_0}{\varepsilon_0}

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Q2.

Calculate 6 × 3.

(A)

18

(B)

20

(C)

24

(D)

15

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2019 (195 questions)

Q1.

In Chemistry, examine the topic of Avogadro's number and definition of one mole of a substance. Which statement is scientifically accurate?

(A)

602 \times 10^{-19} particles

(B)

011 \times 10^{23} particles

(C)

6.022 \times 10^{22} particles

(D)

6.022 \times 10^{23} elementary entities (atoms, molecules, or ions)

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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^{22} particles

(D)

6.022 \times 10^{23} elementary entities (atoms, molecules, or ions)

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2018 (215 questions)

Q1.

Calculate 10 × 4.

(A)

42

(B)

40

(C)

36

(D)

50

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Q2.

Calculate 10 × 7.

(A)

63

(B)

70

(C)

80

(D)

72

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2017 (207 questions)

Q1.

In Biological Sciences, identify the accurate description regarding Primary photosynthetic pigment responsible for absorbing blue and red light wavelengths.

(A)

Chlorophyll a

(B)

Carotenoids

(C)

Anthocyanin

(D)

Phycobilin

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Q2.

In Chemistry, examine the topic of Reagent used to distinguish between aldehydes and ketones. Which statement is scientifically accurate?

(A)

Ninhydrin reagent

(B)

Lucas reagent

(C)

Neutral FeCl3 solution

(D)

Tollens' reagent (Ammoniacal Silver Nitrate) which gives a silver mirror with aldehydes

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2016 (171 questions)

Q1.

Calculate 8 × 4.

(A)

34

(B)

32

(C)

40

(D)

28

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Q2.

What is 23 minus 15?

(A)

9

(B)

13

(C)

8

(D)

7

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2015 (195 questions)

Q1.

In Biological Sciences, identify the accurate description regarding Phenotypic ratio of a classic Mendelian monohybrid cross in the F2 generation.

(A)

1 : 1 : 1 : 1

(B)

3 : 1 (Dominant to Recessive phenotype)

(C)

9 : 3 : 3 : 1

(D)

1 : 2 : 1

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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 = 14

(B)

pH = 0

(C)

pH = 1

(D)

pH = 7, where [H^+] = [OH^-] = 10^{-7} \text{ M}

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