Sometimes yellow turbidity appears o passing `H_(2)S` gas even in the absence of the second group radicals. This happens becauseA. Sulphur is present in the mixture as an impurityB. The fourth group radicals are precipitated as sulphidesC. The `H_(2)S` is oxidized by some acid radicalsD. The third group radicals are precipitated

Sometimes yellow turbidity appears o passing `H_(2)S` gas even in the

1.	Sometimes yellow turbidity appears o passing `H_(2)S` gas even in the absence of the second group radicals. This happens becauseA. Sulphur is present in the mixture as an impurityB. The fourth group radicals are precipitated as sulphidesC. The `H_(2)S` is oxidized by some acid radicalsD. The third group radicals are precipitated
Answer» Correct Answer - B This is due to the precipitation of fourth group radical as sulphides due to high concentration of `S^(2-)` in the solution as a result yellow turbidity is obtained.

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