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

1.	In second group, H_2 S is passed in the presence of dil. HCl because
Answer» HCl checks INCOMPLETE precipitation of HIGHER GROUP RADICALS HCl checks precipitation of sulphur both (a) and (b) none of these Solution :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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