ChemistryEasy64×since 2004Q1752The formula of the purple colour formed in Laissaigne's test for sulphur using sodium nitroprusside is :ANaFe[Fe(CN)₆]BNa[Cr(NH₃)₂(NCS)₄]CNa₂[Fe(CN)₅(NO)]DNa₄[Fe(CN)₅(NOS)]Check answerSkip