Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 34

MEDIUM

9th CBSE

IMPORTANT

Earn 100

Define sol and give one example.

Important Questions on Is Matter Around Us Pure

MEDIUM

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 34

Define Aerosol and give one example:

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9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 34

Define emulsion and give one example:

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9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 34

Define foam and give one example:

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9th CBSE

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Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 35

What is meant by the concentration of a solution?

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Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 36

What will happen if a saturated solution is: (i) heated and (ii) cooled?

HARD

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Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 37

21.5 g

of sodium chloride dissolves in

60 g

of water at

25 ° C

. Calculate the solubility of sodium chloride in water at that temperature.

HARD

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 38

9.72 g

of potassium chloride dissolves in

30 g

of water at

70 ° C

. Calculate the solubility of potassium chloride at that temperature.

EASY

9th CBSE

IMPORTANT

Science for Ninth class Part 2 Chemistry>Chapter 2 - Is Matter Around Us Pure>Short Answer Type Questions>Q 39

Classify the following as physical or chemical change:
Cooking of food.