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Assertion: A sol of As2S3 prepared by th...

Assertion: A sol of `As_2S_3` prepared by the action of `H_2S` on `As_2O_3` is negatively charged.
Reason: It is due to the absorption of `H^+` ions on the surface of the colloidal particle and `S^(2-)` ions in the diffused layer.

A

A. If both assertion and reason are correct and reason is the correct explanation of assertion .

B

B. Both assertion and reason are correct but reason is not the correct explanation of assertion

C

C. If assertion is correct and reason is not correct

D

D. Assertion is wrong and reason is correct

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