Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF ANIONS CLASS A-SUBGROUP IMedium2 minQB

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Passage / Comprehension

Colour of precipitate C is :-

Options:

Answer:

Solution:

The purple color formed with sodium nitroprusside confirms the presence of the sulfide ( $S^{2 -}$ ) ion in the sodium carbonate extract. When this extract reacts with Silver Nitrate ( $A g N O_{3}$ ), it forms a precipitate of Silver Sulfide ( $A g_{2} S$ ), which is identified as C. $A g_{2} S$ is a characteristic black precipitate. This black precipitate is soluble in hot dilute Nitric Acid ( $H N O_{3}$ ) due to oxidation. Therefore, the correct option is (B).

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF ANIONS CLASS A-SUBGROUP I

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