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Assertion:Isoelectric point is the pH at...

Assertion:Isoelectric point is the pH at which colloidal particles can move towards either of the electrodes. Reason: At the isoelectric point, colloidal particles became electrically neutral.

A

If both (A) and (R) are correct, and (R) is the correct explanation of (A)

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A)

C

If (A) is correct, but (R) is incorrect

D

If (A) is incorrect, but (R) is correct

Text Solution

Verified by Experts

The correct Answer is:
D
Isoelectric point is the pH at which the colloidal particles do not move towards cathode or anode. At the isoelectric point, colloidal particles have zero net charge at the surface of fixed layer.
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