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Yellow ammonium sulphide solution is a s...

Yellow ammonium sulphide solution is a suitable reagent for the separation of

A

HgS and PbS

B

PbS and `Bi_(2)S_(3)`

C

`Bi_(2)S_(3)` and CuS

D

CdS and `As_(2)S_(3)`

Text Solution

Verified by Experts

Since CdS belongs to IIA and `As_(2)S_(3)` belongs to II B, they can be separated with yellow ammonium sulphide as only II B group sulphides dissolve in it.
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DINESH PUBLICATION-PRINCIPLES RELATED TO PRACTICAL CHEMISTRY-RQ
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