Sometimes yellow turbidity appears while passing `H_(2)S` gas even in the absence of II group radicals. This is because of

Question

Sometimes yellow turbidity appears while passing `H_(2)S` gas even in the absence of II group radicals. This is because of

Sometimes yellow turbidity appears while passing `H_(2)S` gas even in the absence of II group radicals. This is because of
A. Sulphur is present in the mixture as impurity
B. IV group radicals are precipitated as sulphides
C. Of the oxidation of `H_2S` gas by some acid radicals
D. III group radicals are precipitated as hydroxides

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

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.

4 views Answered 2023-02-05 15:29