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Explain the following : (a) Same subst...

Explain the following :
(a) Same substance can act both as colloids and crystalloids.
(b) Artificial rain is caused by spraying salt over clouds.

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XII BOARDS PREVIOUS YEAR-XII BOARDS-IMPORTANT QUESTIONS FOR PRACTICE CHEMISTRY (THEORY-XII) UNSOLVED)
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  4. How are the following colloidal solutions prepared ? (a) Sulphar in ...

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  11. The partial pressure of ethane over a saturated solution containing 6....

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  18. (a) Differentiate between copoly-merization and homopolymerization. Gi...

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