1.

Statement-1.A sol Sa_(2)S_(3) prepared by the action of H_(2)S on As_(2)O_(3) is negativity charged. Statement-2. It is due to the presence of S^(2-) ions in the diffused layer.

Answer»

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation of Statement-1.
Statement-1 is True, Statement-2 is True, Statement-2 is NOT a correct explanation of Statement-1.
Statement-1 is True, Statement-2 is FALSE.
Statement-1 is False, Statement-2 is Ture.

Solution :Correct Statement-2, 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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