EASY
9th CBSE
IMPORTANT
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What is meant by a solution? Give two examples of solutions.

Important Questions on Is Matter Around Us Pure

EASY
9th CBSE
IMPORTANT
What is a suspension? Give two examples of suspensions.
EASY
9th CBSE
IMPORTANT
What is a colloid? Give two examples of colloids (or colloidal solutions).
MEDIUM
9th CBSE
IMPORTANT
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not?
MEDIUM
9th CBSE
IMPORTANT
How would you prepare a saturated solution of sodium chloride in water at 25°C? What will happen if this solution is cooled to 10°C?
MEDIUM
9th CBSE
IMPORTANT
One of the following is solid foam. This one is
MEDIUM
9th CBSE
IMPORTANT
Which of the following is not an emulsion?
EASY
9th CBSE
IMPORTANT
One of the following does not show the Tyndall effect. This one is:
MEDIUM
9th CBSE
IMPORTANT
Which one of the following is most likely to exhibit a Tyndall effect?