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A yellow turbidity, sometimes appears on...

A yellow turbidity, sometimes appears on passing `H_(2)S` gas ever in the absence of the second group radicals. This happens because

A

Sulphur is present in the mixture as an impurity

B

The fourth group radicals are precipitated as sulphides

C

The `H_(2)S` is oxidized by some acid/Basic radicals

D

The third group radicals are precipitated

Text Solution

Verified by Experts

The correct Answer is:
C
This is due to high concentration of S in the solution as a result yellow turbidity is obtained `H_(2)Sunderset("radicals")overset("oxidise")(rarr)S`
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