The compound (s) which generate (s) `N_(2)` upon thermal decomposation is (are) :

Options

A. `NH_(4)NO_(3)`
B. `(NH_(4))_(2)Cr_(2)O_(7)`
C. `Ba(N_(3))_(2)`
D. `Mg_(3)N_(2)`

Answer

B, C

Explanation

(a) `NH_(4) NO_(3) overset(Delta)underset("below" 300^(@)C)to N_(2)O + 2H_(2)O`
`(b) (NH_(4))_(2) Cr_(2)O_(7) overset(Delta)to N_(2)+ Cr_(2)O_(3) + 4H_(2)O`
`(c) Ba(N_(3))_(2) overset(Delta)to Ba+ 3N_(2)`
(d) `Mg_(3)N_(2) ` (it does not decompose into `N_(2)`)