1.

Assertion. The conversion of fresh precipitate to colloidal state is called peptization. Reason. It is caused by addition of common ions.

Answer»

If both assertion and reason are ture, and reason is the trure explanation of the assertion.
If both assertion and reason are true, but reason is not the true explanation of the assertion.
If assertion is true, but reason is false.
If both assertion and reason false.

Solution :CORRECT explanation. It is caused by adsorption of common IONS on the SURFACE of the precipitate RESULTING into repulsion and fragmentation.


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