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Aqueous solution of a salt when treated ...

Aqueous solution of a salt when treated with `AgNO_(3)` solution gives a white precipitate , white dissolves in `NH_(4)OH`. Radical present in the salt is

A

`Cl^(-)`

B

`Br^(-)`

C

`I^(-)`

D

`NO_(3)^(-)`

Text Solution

Verified by Experts

The correct Answer is:
A
When `Cl^(-),Br^(-)` and `F^(-)` are treated with `AgNO_(3)` solution in presence of dilute `HNO_(3)`, corresponding silver halide is obtained which is soluble in `NH_(4)OH`, NaCN and `Na_(2)S_(2)O_(3)`.
`AgNO_(3) + NaCl to underset("White")(AgCl) darr + NaNO_(3)`
`AgCl + dil.2NH_(4)OH to [Agunderset("complex")((NH_(3))_(2))]Cl + 2H_(2)O`
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