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Which of the following is an easy test to detect/confirm Sulphuide in any salt ?

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Black colour with Lead acetate paper

It turns acidified $K_{2} C r_{2} O_{7}$ solution to Green

The Violet colour compound $C r_{2} {(S O_{4})}_{3}$ is

It turns acidified $K_{2} C r_{2} O_{7}$ solution to Violet.

answer is C.

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Detailed Solution

It turns sulphides to hydrogen sulphide gas which reacts as follows and give the corresponding product

$P b {(C H_{3} C O O)}_{2} + H_{2} S \to P b S (B l a c k)$

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