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ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Hard2 minPYQ_2015

ChemistryHardmatching list

The cation that will not be precipitated by $H_{2} S$ in the presence of dil HCl is:

Options:

Answer:

Solution:

$C o^{2 +}$ precipitated by $H_{2} S$ in presence of $N H_{4} O H$ in group IV as CoS (Black ppt.)

Other are precipitated as sulphide in presence of dil HCl in group II.

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

⏱ 2mℹ️ Source: PYQ_2015

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