Q49 of 252 Page 81

What is a colloid? Give two examples of suspensions.

A colloid is a kind of solution in which the size of solute particles is bigger than that of a true solution but smaller than that of a suspension. E.g. milk and ink.


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What is meant by a solution? Give two examples of solutions.

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What is a suspension? Give two examples of suspensions.

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(a) Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not?

 50

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?