Question

Mixing of two oppositely charged sols leads to ____________.

Options

• precipitation of any one of the sols

• coagulation of only positively charged sol

• mutual coagulation of both sols

• formation of protective layer by one sol on the other sol

Answer 1

Mixing of two oppositely charged sols leads to mutual coagulation of both sols.

Explanation:

The positive particles of one sol are attracted by the negative particles of the second sol. This results in neutralization of their charges and gets precipitated. This is called mutual coagulation.