Q22 of 38 Page 64

Give one example of each of the following:

(a) Aerosol


(b) Solution

(a) Aerosol: Fog

Fog is an aerosol which has liquid as the disperged phase and gas as the dispersing medium.


(b) Solution


Lemonade water


In lemonade water, the sugar and the salt are evenly distributed giving rise to a homogeneous mixture of the same.


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20

Name a metal which is liquid.

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What is the difference between the smell of H2S gas and H2 gas?

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Give the names of the elements present in the following compounds:

(a) Quick lime


(b) Hydrogen bromide


(c) Baking powder


(d) Potassium sulphate

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10ml of H2SO4 is dissolved in 90 ml of water. Calculate mass by volume percentage of solution.