The compound(s) which generate(s) N_(2) gas upon thermal decomposition

1.	The compound(s) which generate(s) N_(2) gas upon thermal decomposition below 300^(@)C is (are)
Answer» `NH_(4)NO_(3)` `(NH_(4))_(2)Cr_(2)O_(7)` `Ba(N_(3))_(2)` `Mg_(3)N_(2)` Solution :`NH_(4)NO_(3)` on HEATING gives `N_(2)O` while `Mg_(3)N_(2)` does not decompose below `300^(@)C`. Thus, `(NH_(4))_(2)Cr_(2)O_(7)andBa[N_(3)]_(2)` on thermal DECOMPOSITION give `N_(2)` i.e., options (b,c) are correct.

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