Karnataka Board - Class 7 previous year questions (PYQ)

2026 (1645 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.

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

(A)

Mitochondria, containing enzymes for the Krebs cycle and oxidative phosphorylation

(B)

Ribosomes, synthesizing proteins

(C)

Lysosomes, digesting cellular debris

(D)

Golgi apparatus, packaging lipids

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2025 (176 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)

Platinum gauze (Pt)

(B)

Finely divided Iron (Fe) with Molybdenum (Mo) or K2O/Al2O3 as promoter

(C)

Vanadium pentoxide (V2O5)

(D)

Nickel (Ni) in Raney form

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Q2.

Regarding Kannada (ಸಿರಿ ಕನ್ನಡ), which statement represents a core foundational principle of Correct grammatical structure of affirmative sentences?

(A)

Verb + Subject + Object

(B)

Subject + Verb + Object in standard grammatical syntax

(C)

Object + Subject + Verb

(D)

Object + Verb + Subject

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2024 (328 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)

+2

(D)

+4

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Q2.

In English Language and Grammar, identify the grammatically correct sentence or rule regarding Idiom meaning: 'Bite the bullet'.

(A)

To shoot an accurate target

(B)

To retreat from an impending danger

(C)

To eat something very hard

(D)

To face a difficult or unpleasant situation with courage and fortitude

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2023 (303 questions)

Q1.

In Physics, consider the SI unit of electric current and magnetic flux density. Which statement correctly defines this principle?

(A)

Volt (V) and Weber (Wb)

(B)

Ohm (Ω) and Henry (H)

(C)

Ampere (A) and Tesla (T)

(D)

Coulomb (C) and Gauss (G)

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Q2.

In Chemistry, examine the topic of Le Chatelier's Principle effect of increasing pressure on the equilibrium $N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$. Which statement is scientifically accurate?

(A)

Equilibrium constant K increases

(B)

Equilibrium shifts to the left toward more moles of gas

(C)

No effect on equilibrium position because temperature is constant

(D)

Equilibrium shifts to the right (forward direction) toward fewer moles of gas

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2022 (205 questions)

Q1.

Regarding Kannada (ಸಿರಿ ಕನ್ನಡ), which statement represents a core foundational principle of Importance of environmental conservation and biodiversity?

(A)

Eliminating apex predators from natural habitats

(B)

Maximizing industrial waste output

(C)

Maintaining ecological equilibrium, nutrient cycling, and climate regulation

(D)

Accelerating deforestation for urban sprawl

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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 travel from an optically denser to rarer medium and angle of incidence must exceed critical angle ($i > i_c$)

(B)

Light must be monochromatic and linearly polarized

(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 (194 questions)

Q1.

Regarding Kannada (ಸಿರಿ ಕನ್ನಡ), which statement represents a core foundational principle of Correct grammatical structure of affirmative sentences?

(A)

Object + Verb + Subject

(B)

Subject + Verb + Object in standard grammatical syntax

(C)

Object + Subject + Verb

(D)

Verb + Subject + Object

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Q2.

In English Language and Grammar, identify the grammatically correct sentence or rule regarding Active to Passive voice transformation: 'The government has constructed a new bridge across the river.'.

(A)

A new bridge is being constructed across the river by the government.

(B)

A new bridge has been constructed across the river by the government.

(C)

A new bridge had been constructed across the river by the government.

(D)

A new bridge was constructed across the river by the government.

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2020 (200 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)

Imbibition

(B)

Transpiration, which drives sap ascent and cools plant tissues

(C)

Guttation

(D)

Respiration

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Q2.

What is 30% of 300?

(A)

115

(B)

100

(C)

90

(D)

80

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2019 (191 questions)

Q1.

Solve the linear equation for $x$: $8x + 11 = 75$.

(A)

x = 7

(B)

x = 10

(C)

x = 9

(D)

x = 8

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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 = 1

(B)

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

(C)

pH = 0

(D)

pH = 14

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2018 (210 questions)

Q1.

Regarding Kannada (ಸಿರಿ ಕನ್ನಡ), which statement represents a core foundational principle of Correct grammatical structure of affirmative sentences?

(A)

Subject + Verb + Object in standard grammatical syntax

(B)

Object + Subject + Verb

(C)

Object + Verb + Subject

(D)

Verb + Subject + Object

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Q2.

Regarding Kannada (ಸಿರಿ ಕನ್ನಡ), which statement represents a core foundational principle of Role of fundamental duties in the constitutional civic framework?

(A)

Fostering civic consciousness, preserving national integrity, and protecting the environment

(B)

Granting absolute immunity from civil laws

(C)

Allowing tax evasion under certain conditions

(D)

Mandating foreign citizenship upon majority

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2017 (252 questions)

Q1.

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

(A)

Neutral FeCl3 solution

(B)

Lucas reagent

(C)

Ninhydrin reagent

(D)

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

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Q2.

Divide 15 in the ratio 2 : 3.

(A)

6 and 9

(B)

8 and 7

(C)

12 and 9

(D)

5 and 10

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2016 (212 questions)

Q1.

Solve the linear equation for $x$: $5x + 9 = 39$.

(A)

x = 5

(B)

x = 8

(C)

x = 7

(D)

x = 6

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Q2.

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

(A)

Total internal reflection inside clouds

(B)

Diffraction of light by interstellar dust

(C)

Atmospheric refraction of starlight through turbulent air layers of varying refractive indices

(D)

Dispersion of light by water droplets

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2015 (229 questions)

Q1.

In English Language and Grammar, identify the grammatically correct sentence or rule regarding Idiom meaning: 'Bite the bullet'.

(A)

To face a difficult or unpleasant situation with courage and fortitude

(B)

To eat something very hard

(C)

To shoot an accurate target

(D)

To retreat from an impending danger

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Q2.

Solve the linear equation for $x$: $3x + 13 = 28$.

(A)

x = 5

(B)

x = 6

(C)

x = 7

(D)

x = 4

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