NEET Chemistry Surface Chemistry Questions Solved

BOARD

Explain the following:

(a) Same substance can act both as colloids and crystalloids.

(b) Artificial rain is caused by spraying salt over clouds.

(a) Sodium chloride behaves as a crystalloid when dissolved in water 

but behaves as a colloid when dissolved in benzene.

(b) Artificial rain is caused by spraying common salt over the clouds, 

as it is an electrolyte and brings about coagulation of water particles.

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