Chemistry - Salt Analysis Question with Solution | TestHub

ChemistrySalt AnalysisTEST OF CATIONS Dry Test, Group Analysis, Group 1,2Easy2 minPYQ_2021

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Consider the sulphides $HgS, PbS, CuS, {Sb}_{2} S_{3}, {As}_{2} S_{3}$ and $CdS .$ Number of these sulphides soluble in $50 % {HNO}_{3}$ is ___________ .

Answer:

Solution:

$CdS, PbS, {As}_{2} S_{3}$ and $CuS,$ are soluble in $50 % {HNO}_{3}$ while $HgS$ and ${Sb}_{2} S_{3}$ are insoluble in $50 % {HNO}_{3}$ but $HgS$ soluble in aqua regia.

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

⏱ 2mℹ️ Source: PYQ_2021

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