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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

`S^(2-)`

C

`I^(-)`

D

All of them

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The correct Answer is:
A
When `Cl^(-)` is 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)+NaClrarr AgClunderset("white")(+)NaNO_(3)`
`AgCl+"dil. " 2NH_(4)OH underset("complex")([Ag(NH_(3))_(2)Cl)+ 2H_(2)O`
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