`NH_(3)` can't be obtained by :

Options

A. heating of `NH_(4)NO_(3)` or `NH_(4)NO_(2)`
B. heating of `NH_(4)Cl` or `(NH_(4))_(2) CO_(3)`
C. heating of `NH_(4)NO_(3)` with `NaOH`
D. reaction of `AlN` or `Mg_(3)N_(2)` or `CaCN_(2)` with `H_(2)O`

Answer

A

Explanation

`NH_(4)NO_(3)and NH_(4)NO_(2)`" both contain oxidising aninons and thus gives " `N_(2)O or N_(2)` "not ammonia".
`NH_(4)NO_(3) overset(Delta)to N_(2)O+2H_(2)O`" "," "`NH_(4)NO_(2)overset(Delta)toN_(2)+H_(2)O`