Yellow ammonium sulphide solution is a s...

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

A

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

B

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

C

`HgS and PbS

D

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

Verified by Experts

`As_(2)S_(3)+(NH_(4))_(2)S_(2)tounderset("soluble")((NH_(4))_(3)AsO_(3))`
Hence,(D) is the correct answer.

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