In qualitative analysis, in order to detect second group basic radical – InterviewSolution

1.	In qualitative analysis, in order to detect second group basic radical, HS gas is passed in the presence of dilute HCI to
Answer» increase the dissociation of `H_(2)S` decrease the dissociation of SALT solution decrease the dissociation of `H_(2)S` increase the dissociation of salt solution Solution :The original solution must be FREE from any oxidising agent otherwise`H_(2)S` gets oxidised with precipitation of free sulphur. This is done by heating the mixture with concentrated HC1 for SUFFICIENT time during PREPARATION of original solution.

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