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The formula of the compound which gives ...

The formula of the compound which gives violet color in Lassaigne's test for sulphur with sodium nitroprusside is

A

`Na_(4)[Fe(CN)_(6)S]`

B

`Na_(4)[Fe(CN)_(5)NCS]`

C

`Na_(4)[Fe(CN)_(5)NOS]`

D

`Na_(2)[Fe(CN)_(5)NOS]`

Text Solution

Verified by Experts

The correct Answer is:
C
`Na_(2)S+underset("Sodium nitroprusside")(Na_(2)[Fe(CN)_(5)NO])rarrunderset("Deep violet color")([Na_(4)[Fe(CN)_(5)NOS]])`
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