Sodium nitroprusside Na2[Fe(CN)5NO] is used as reagent for detection of _ and the compound formed is _.

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Sulphur, Na4 [Fe(CN)5NOS]

Nitrogen, Na4[Fe(CN)6]

Sulphur, Na2[Fe(CN)4NOS]

Sulphur, Na2[Fe(CN)5NOS]

answer is A.

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Detailed Solution

Na2[Fe(CN)5NO] + Na2S → Na4[Fe(CN)5NOS] violet colour, Sulphur is confirmed.Hence, the correct answer is (1).