Related Practice Questions :

Which does not show Tyndall effect?

(a) Emulsion

(b)Blood

(c)milk

(d)sugar solution

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The cotterells precipitator is used to :

(a) neutralize charge on carbon particles in air in smoke

(b) coagulate carbon atoms of smoke

(c) bring in cataphoresis in carbon particles

(d) all of the above

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A liquid aerosol is a colloidal system of:

(a)a liquid dispersed in a solid

(b)a liquid dispersed in a gas

(c)a gas dispersed in a liquid

(d) a solid dispersed in a gas

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Alum helps in purifying water by:

(a) forming Si complex with clay particles

(b) sulphate part which combines with the dirt and removes it

(c) aluminium which coagulates the mud particles

(d) making mud water soluble

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Clouds, mist, fog and aerosols are colloidal solution of:

(a) solid in a gas

(b) gas in a solid

(c) liquid in a gas

(d) gas in a liquid

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