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A metal gives two different chlorides 'A...

A metal gives two different chlorides 'A' and 'B'. The chloride 'A' gives a white precipitate with `NH_(4)OH` solution while 'B' gives a black precipitate. With KI solution, 'A' gives a red precipitate which dissolves in excess of KI solution. The two chlorides are :

A

`HgCl_(2)" and "HgCl`

B

`HgCl_(2)" and "Hg_(2)Cl_(2)`

C

`Hg_(2)Cl_(2)" and "HgCl_(2)`

D

None of these.

Text Solution

Verified by Experts

The correct Answer is:
B
(b) 'A' is `HgCl_(2)` and 'B' is `Hg_(2)Cl_(2)`
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