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Which of the follwing colloids are forme...

Which of the follwing colloids are formed when hydrogen sulphide gas is passed through a cold solution of arsenious oxide?

A

`As_(2)S_(3)`

B

`As_(2)O_(3)`

C

`As_(2)S`

D

`As_(2)H_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
It is due to adsorption of `S^(2-)` ions on the surface of the colloidal particles and `H^(+)` ions in the diffused layer.
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