A solution when diluted with `H_(2)O` and boiled, it gives a white precipitate. On addition of excess `NH_(4)Cl//NH_(4)OH` the v

A solution when diluted with `H_(2)O` and boiled, it gives a white precipitate. On addition of excess `NH_(4)Cl//NH_(4)OH` the volume of precipitate decreases leaving behind a white gelatinous precipitate. Identify the precipitate which dissolves in `NH_(4)OH//NH_(4)Cl`
A. `Zn(OH)_(2)`
B. `Al(OH)_(3)`
C. `Mg(OH)_(2)`
D. `Ca(OH)_(2)`

A solution when diluted with `H_(2)O` and boiled, it gives a white precipitate. On addition of excess `NH_(4)Cl//NH_(4)OH` the volume of precipitate d

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