alleryWhat is the purple complex formed in the sodium nitroprusside test for sulphide?
AK4[Fe(CN)6]
BNa4[Fe(CN)5NOS]
CNa2[Fe(CN)5NO]
DNa3[Fe(CN)6]
Answer & Solution
Correct answer: B. Na4[Fe(CN)5NOS]
Sulphide adds to the nitroprusside ion to give the purple complex Na4[Fe(CN)5NOS].
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