Cone HNO_(3) is addedbeforeproceedingto test forgroup II This is to – InterviewSolution

1.	Cone HNO_(3) is addedbeforeproceedingto test forgroup II This is to
Answer» CONVENT `Fe^(+2)` ion `Fe^(+3)` ion Oxidise anyremaining `H_(2)S` Fromnitratewhich give grandar precipitate Increases IONISATION of `NH_(4)OH` ANSWER :a

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