Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Medium2 minQB

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A solution of a metal ion when treated with KI gives a red precipitate which dissolves in excess KI to give a colourless solution. Moreover, the solution of metal ion on treatment with a solution of cobalt(II) thiocyanate gives rise to a deep blue crystalline precipitate. The metal ion is

Options:

Answer:

Solution:

$Hg^{2 +} + 2 l^{-} \to Hgl_{2} ↓$ red ppt

$Hgl_{2} + 2 l^{-} \to [Hgl_{4}]^{2 -} soluble complex$

$Hg^{2 +} + Co^{2 +} + 4 SCN^{-} \to Co [Hg (SCN)_{4}] ↓$

blue ppt

Stream:JEESubject:ChemistryTopic:Salt AnalysisSubtopic:TEST OF CATIONS Dry Test, Group Analysis, Group 1,2

⏱ 2mℹ️ Source: QB

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