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In second group, H2 S is passed in the p...

In second group, `H_2 S` is passed in the presence of dil. HCl because

A

HCl checks incomplete precipitation of higher group radicals

B

HCl checks precipitation of sulphur

C

both (a) and (b)

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Due to common ion effect , the ionization of `H_2 S` is suppressed by HCl and only II group basic radicals are precipitated . Higher groups are not precipitated.
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