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Question

In a Lassaignes′s test for sulphur in the organic compound with sodium nitroprusside solution the purple colour formed is due to-

Options

A.Na4 [Fe(CN)5 NOS]
B.Na3 [Fe(CN)5 S]
C.Na2 [Fe(CN)5 NOS]
D.Na3 [Fe(CN)6 ]

Solution

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