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Account for the following. Limit your answer to two sentence: The precipitation of second group sulphides in qualitative analysis is carried out with hydrogen sulphide in presence of hydrochloric acid and not nitric acid.

Account for the following. Limit your answer to two sentence:
The precipitation of second group sulphides in qualitative analysis is carried out with hydrogen sulphide in presence of hydrochloric acid and not nitric acid.

Grade:12th pass

1 Answers

Kevin Nash
askIITians Faculty 332 Points
8 years ago

HNO base 3 is strong oxidizing agent and it oxidises H base 2S to S. So

HNO base 3 cannot be used to precipitate second group elements.

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