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A metal gives two chlorides 'A' and 'B'....

A metal gives two chlorides 'A' and 'B'.'A' gives black precipitate with `NH_(4)OH` and 'B' gives white ppt. With KI 'B' gives a red precipitate soluble in excess of KI.'A' and 'B' are respectively `:`

A

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

B

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

C

`HgCl_(2)` and `ZnCl_(2)`

D

`ZnCl_(2)` and `HgCl_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
`Hg_(2)Cl_(2)` forms black ppt of `HgNH_(2)Cl+Hg`
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