Sometimes yellow turbidity appears while passing `H_(2)S` gas even in – InterviewSolution

InterviewSolution

1.	Sometimes yellow turbidity appears while passing `H_(2)S` gas even in the absence of II group radicals. This is because ofA. Sulphur is present in the mixture as impurityB. IV group radicals are precipitated as sulphidesC. Of the oxidation of `H_2S` gas by some acid radicalsD. III group radicals are precipitated as hydroxides
Answer» Correct Answer - C Such yellow turbidity in group II is due to the oxidation of `H_2S` to S by some oxidising anion (e.g., `NO_3`) present in the mixture.

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