Home JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 7 The correct option among the following is:
JEE Main - Previous Year Papers JEE MAIN 2019 PAPER 7 Single Correct MCQ
Published on: August 11, 2026

The correct option among the following is:

A
Colloidal particles in lyophobic sols can be precipitated by electrophoresis.
B
Brownian motion in colloidal solution is faster the viscosity of the solution is very high.
C
Colloidal medicines are more effective because they have small surface area.
D
Addition of alum to water makes it unfit for drinking.

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Text Solution

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The correct answer is:
A

In electrophoresis precipitation occurs at the electrode which is oppositely charged therefore is correct.

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