Tamil Nadu Board - Class 8 previous year questions (PYQ)

2026 (1698 questions)

Q1.

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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Q2.

What is 10% of 500?

(A)

40

(B)

50

(C)

60

(D)

75

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2025 (345 questions)

Q1.

[MAT] In a certain code language, 'ROSE' is written as '6821' and 'CHAIR' is written as '73456'. How is 'SEARCH' written in that code?

(A)

214673

(B)

214573

(C)

246173

(D)

214637

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Q2.

[SAT] Which layer of the atmosphere contains the ozone layer that absorbs harmful solar ultraviolet (UV) radiation?

(A)

Stratosphere

(B)

Troposphere

(C)

Mesosphere

(D)

Thermosphere

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2024 (648 questions)

Q1.

உரைநடை வினா: 'தமிழ்மொழி வாழ்த்து (பாரதியார்)' பாடத்தில் கூறப்பட்டுள்ள வரலாற்றுச் செய்தி யாது?

(A)

தமிழரின் வீரம், கப்பற்கலை, அறிவியல் சிந்தனை மற்றும் கொடைத்தன்மை (தமிழ்மொழி வாழ்த்து (பாரதியார்))

(B)

பொய்யான கதை

(C)

தவறான தகவல்

(D)

இவற்றுள் எதுவுமில்லை

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Q2.

Regarding Tamil (தமிழ் - NMMS Eligible), which statement represents a core foundational principle of Importance of environmental conservation and biodiversity?

(A)

Eliminating apex predators from natural habitats

(B)

Accelerating deforestation for urban sprawl

(C)

Maximizing industrial waste output

(D)

Maintaining ecological equilibrium, nutrient cycling, and climate regulation

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2023 (652 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)

Mitochondria, containing enzymes for the Krebs cycle and oxidative phosphorylation

(C)

Ribosomes, synthesizing proteins

(D)

Golgi apparatus, packaging lipids

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Q2.

Regarding Tamil (தமிழ் - NMMS Eligible), which statement represents a core foundational principle of Importance of environmental conservation and biodiversity?

(A)

Accelerating deforestation for urban sprawl

(B)

Maintaining ecological equilibrium, nutrient cycling, and climate regulation

(C)

Eliminating apex predators from natural habitats

(D)

Maximizing industrial waste output

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2022 (245 questions)

Q1.

What is 40% of 400?

(A)

185

(B)

150

(C)

160

(D)

170

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Q2.

Solve the linear equation for $x$: $4x + 8 = 36$.

(A)

x = 8

(B)

x = 9

(C)

x = 6

(D)

x = 7

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2021 (234 questions)

Q1.

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 had been constructed across the river by the government.

(B)

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

(C)

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

(D)

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

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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)

+4

(C)

+7

(D)

+6

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2020 (257 questions)

Q1.

Regarding Tamil (தமிழ் - NMMS Eligible), which statement represents a core foundational principle of Role of fundamental duties in the constitutional civic framework?

(A)

Granting absolute immunity from civil laws

(B)

Mandating foreign citizenship upon majority

(C)

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

(D)

Allowing tax evasion under certain conditions

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Q2.

Solve the linear equation for $x$: $4x + 13 = 21$.

(A)

x = 2

(B)

x = 1

(C)

x = 4

(D)

x = 3

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2019 (242 questions)

Q1.

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 Charge

(C)

Conservation of Magnetic Flux

(D)

Conservation of Momentum

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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)

Lysosomes, digesting cellular debris

(C)

Golgi apparatus, packaging lipids

(D)

Ribosomes, synthesizing proteins

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2018 (222 questions)

Q1.

What is 30% of 200?

(A)

70

(B)

50

(C)

85

(D)

60

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Q2.

Divide 10 in the ratio 2 : 3.

(A)

6 and 4

(B)

3 and 7

(C)

8 and 6

(D)

4 and 6

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2017 (212 questions)

Q1.

In English Language and Grammar, identify the grammatically correct sentence or rule regarding Appropriate preposition: 'He was thoroughly accustomed _____ working under strict deadlines.'.

(A)

for

(B)

in

(C)

with

(D)

to

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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)

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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2016 (233 questions)

Q1.

Regarding Tamil (தமிழ் - NMMS Eligible), which statement represents a core foundational principle of Importance of environmental conservation and biodiversity?

(A)

Accelerating deforestation for urban sprawl

(B)

Eliminating apex predators from natural habitats

(C)

Maximizing industrial waste output

(D)

Maintaining ecological equilibrium, nutrient cycling, and climate regulation

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Q2.

Solve the linear equation for $x$: $4x + 12 = 44$.

(A)

x = 7

(B)

x = 9

(C)

x = 8

(D)

x = 10

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2015 (241 questions)

Q1.

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

(A)

Dispersion of light by water droplets

(B)

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

(C)

Diffraction of light by interstellar dust

(D)

Total internal reflection inside clouds

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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)

+4

(B)

+6

(C)

+2

(D)

+7

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