A metallic nitrate `(A)` on strong heating leaves behind a residue along with liberation of gases.
Channel: Doubtnut
Date: 12/04/2020

A metallic nitrate `(A)` on strong heating leaves behind a residue along with liberation of gases. The metallic nitrate on treatment with `H_(2)S//H^(+)` gives a black precipitate `(B)^(-)` insoluble in hot dilute nitric acid, but the precipitate dissolves in aquaregia.   Which of the following observation is true ? If the metallic nitrate is dissolved in `H_(2)O` and then treated with `NH_(3)`