1.

Sodium nitrophrusside when added to an alkaline solution of sulphide ions produce as

Answer»

RED colouration
Blue colouration
Purple colouration
Brown colouration

Solution :`Na_(2)S+underset("SODIUM nitroprusside")(Na_(2)[Fe(NO)(CN)_(5)])to underset("Violet coloured complex")(Na_(3)[Fe(ONSNa)(CN)_(5)])` or `underset("Purple colour complex")(Na_(4)[Fe(CN)_(5)NOS])`


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