1.

Three separate samples of a solution of a single salt gave these results. One formed a white precipitate with excess of ammonia solution, one formed a white precipitate with dil NaCl solution and one formed a black precipitate with H_(2)S. The salt could be :

Answer»

`AgNO_(3)`
`PB(NO_(3))_(2)`
`Hg(NO_(3))_(2)`
`MnSO_(4)`

ANSWER :B


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