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Sodium nitoprusside when added to an alk...

Sodium nitoprusside when added to an alkaline solution of sulphide ions produce a

A

Red colouration

B

Blue colouration

C

Purple colouration

D

Brown colouration

Text Solution

Verified by Experts

The correct Answer is:
C
`Na_(2)S + Na_(2) underset("Sodium nitroprusside")([Fe(NO)(CN)_(5)]) to Na_(3)underset("Violet coloured complex")([Fe(ONSNa)(CN)_(5)]) or Na_(4)underset("Purple colour complex")([Fe(CN)_(5)NOS])`
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