Question
Chemistry Question on Colloids
: The conversion of fresh precipitate to colloidal state is called peptization. : It is caused by addition of common ions.
A
If both Assertion and Reason are true and Reason is the correct explanation of Assertion.
B
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
C
If Assertion is true but Reason is false.
D
If both Assertion and Reason are false.
Answer
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Explanation
Solution
Correct reason to assertion is that common ion adsorb on the surface of precipitate. Due to repulsion between adsorbed ions, the precipitate undergo fragmentation resulting in colloidal state.