Analytical ChemistryHard

Question

Sodium nitroprusside, when added to an alkaline solution of S2- ions produces purple clouration due to formation of :

Options

A.Na4[Fe(CN)5.NOS]
B.Na3[Fe(CN)5.NOS]
C.Na2[Fe(H2O)5.NOS]
D.Na [Fe(H2O)5.NOS]

Solution


Na2S + Na2 [Fe(CN)5 NO] → Na4 [Fe(CN)5NOS]
                                                       purpl complex

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