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Chapter 1

Matter in Our Surroundings

Chemistry•Class 9•CBSE

10 Questions Available

Showing 10 questions on this page

Define latent heat of vaporization.

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A balloon when kept in sun, bursts after some time. Why?

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What are fluids?

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Liquids and gases can be compressed but it is difficult to compress solids. Why?

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Explain giving examples the various factors on which rate of evaporation depends.

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Explain why solids have fixed shape but liquids and gases do not have fixed shape.

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1 kg cotton and 1 kg sand, which is more denser? Why?

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Why do we see water droplets collected on the outer surface of a glass container, containing ice?

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Why is it advisable to use pressure cooker at higher altitudes?

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Why do people perspire a lot on a hot humid day?

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