SATHEE: Qualitative Analysis - Result Question 78

Qualitative Analysis - Result Question 78

81. The precipitation of second group sulphides in qualitative analysis is carried out with hydrogen sulphide in the presence of hydrochloric acid but not in nitric acid. Explain.

(1979, 2M)

Show Answer

Solution:

Nitric acid is a strong oxidising agent, oxidises $H _2 S$ to $S$.

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Qualitative Analysis

Qualitative Analysis - Result Question 78

81. The precipitation of second group sulphides in qualitative analysis is carried out with hydrogen sulphide in the presence of hydrochloric acid but not in nitric acid. Explain.

Solution:

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