All ammonium salts on heating with sodium hydroxide produce ammonia gas. From which ammonium salt, can maximum amount of ammonia be obtained ?

Options

A. `0.5 mol (NH_(4))_(3)PO_(4)`
B. `0.5 mol (NH_(4))_(2)SO_(4)`
C. `1.0 mol NH_(4)Cl`
D. `1.0 mol NH_(4)NO_(3)`

Answer

A

Explanation

`{:(underset("0.5 mol")((NH_(4))_(3)PO_(4)),-=,underset("1.5 mol")(2NH_(3))),(underset("0.5 mol")((NH_(4))_(2)SO_(4)),-=,underset("1.0 mol")(2NH_(3))),(underset("1.0 mol")(NH_(4)Cl),-=,underset("1.0 mol")(NH_(3))),(underset("1.0 mol")(NH_(4)NO_(3)),-=,underset("1.0 mol")(NH_(3))):}`
`(NH_(4))_(3)PO_(4)` can give maximum mass of ammonia gas.