CBSE Class 9 Chemistry Revision Worksheet Set K

CBSE Class 9 Chemistry Worksheet - Revision (8)

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Q1 What do mean by atmospheric pressure? What are the units of atmospheric pressure?

Q2 What is Graham’s Law of diffusion?

Q3 Apart from solid, liquid and gas, what are the other two states of matter?

Q4 A punctured tyre becomes flat more easily in summer than in winter. Explain.

Q5 Which of the following is not a matter?

a) Fog

b) Humidity

c) Melting point

d) Blood

Q6 How will you demonstrate that temperature remains constant during the conversion of

solid into liquid?

Q7 What do you mean by Latent heat of vaporization?

Q8 Why is ice rubbed on a burnt part of the skin?

Q9 What are metalloids?

Q10 Calculate the mass of glucose and mass of water required to make 250g of 25%

solution of glucose.

Q11 Salt can be recovered from its solution by evaporation. Suggest some other

techniques for the same.

Q12 Name the process associated with the following:-

a) A acetone bottle is left open and the bottle becomes empty.

b) Milk is churned to separate cream from it.

c) Fine beam of light entering through a small hole in the dark room illuminates

the particles in its path.

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