Chemistry, asked by saki2750, 8 months ago

Why hcl is added before h2s in second group detection?

Answers

Answered by Shinchanboy03
0

Answer:

Why HCl is added before H2S gas during qualitative analysis of second group radicals. ... The concentration of sulphide ions is suppressed by HCl due to common ion effect. The already present H+ ions suppress the dissociation of H2S by moving the reaction in the backward reaction.

Answered by Anonymous
1

Explanation:

The concentration of sulphide ions is suppressed by HCl due to common ion effect. The already present H+ ions suppress the dissociation of H2S by moving the reaction in the backward reaction.

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