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Colours in Coordination Compounds

The color dev...

Question

The color developed when sodium sulphide is added to sodium nitroprusside is:

A

purple

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B

yellow

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C

red

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D

black

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Solution

The correct option is A purple
The color developed when sodium sulphide is added to sodium nitroprusside is purple.
$N a_{2} S + N a_{2} [F e (N O) (C N)_{5}] \to N a_{4} [F e . N O . (C N)_{5}]$ ( purple color)

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