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Grade: 12th pass 
        
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.
4 years ago

Answers : (1)

Kevin Nash
askIITians Faculty
332 Points 
							


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.
4 years ago
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