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underset(("Black"))(X)overset(Dil.H(2)SO...

`underset(("Black"))(X)overset(Dil.H_(2)SO_(4))tounderset(("gas"))(Y)overset(Dil.HNO_(3))to` Colloidal sulphur identify X?

A

CuS

B

FeS

C

`As_(2)S_(3)`

D

`CdS`

Text Solution

Verified by Experts

The correct Answer is:
B
`underset(("Black"))(FeS)overset(Dil.H_(2)SO_(4))toH_(2)Soverset(Dil.HNO_(3))tounderset("colloidal sulphur")(S)+NO_(2)+2H_(2)O`
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