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Test Report

Matter In Our Surroundings

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Test Report

Matter In Our Surroundings

Q1.

Assertion :- Gases can be easily compressed.

Reason     :- because these have least intermolecular interaction.

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ANS

Assertion is correct & reason is correct

Assertion is correct & reason is wrong

Assertion is wrong & reason is correct

Assertion is wrong & reason is wrong

Q2. Which of the following combination gives almost negligible diffusion

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ANS

Solid-solid Solid-liquid Liquid-liquid Gas-gas

Q3. Which of the following decreases the rate of evaporation

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ANS

Surface area Humidity Temperature Wind

Q4. The fluroscent tubes & neon sign bulbs glow because of

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ANS

Presence of charged particles High density of gases High temperature High applied voltage

Q5.

Which of the following processes does not convert a liquid into vapours

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ANS

Boiling point & melting point above room temperature Heating Evaporation Condensation

Q6. The mass per unit volume of a substance is called

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ANS

Density Diffusion Surface tension All of the above