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X(2)S(n)+water to X(OH)(n) darr+ underse...

`X_(2)S_(n)+water to X(OH)_(n) darr+ underset((Gas))(Y uarr)overset(Pb(CH_(3)COO)_(2))tounderset(("Black ppt."))(Z darr)`
Then (X) cation can not be:

A

`Fe^(3+)` gives brown colour solution with potassium ferricyanide

B

`Al^(3+)`

C

`Cr^(3+)`

D

`Mg^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
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