Can the solution be acidified with HNO_(3) in group II before passing – InterviewSolution

1.	Can the solution be acidified with HNO_(3) in group II before passing H_(2)S gas?
Answer» SOLUTION :NO, `HNO_(3)` being oxidising in nature OXIDISES `H_(2)S` GAS to form colloidal SULPHUR which makes the analysis complicated.

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