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Sodium nitroprusside when added to an al...

Sodium nitroprusside when added to an alkaline solution of sulphide ions produces

A

red colouration

B

blue colouration

C

purple colouration

D

brown colouration

Text Solution

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The correct Answer is:
C
This test is used for the presence of sulphur in any compound. When sodium nitroprusside, react with sulphide ion, (e.g. `Na_(2)S)` the following reaction takes place
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Statement-1:A solution containing S^(2-) ions gives purple/violet colour with sodium nitroprusside solution in alkaline medium. Statement-2 :Sodium sulphide gives black precipitate with silver nitrate solution.

Statement-1: A solution containing S^(2-) ion gives purple/violet colour with sodium nitroprusside solution in alkaline medium. Statement-2: Sodium sulphide gives balck precipitate with silver nitrate solution.

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