1.

For per gram of reactant, the maximum quantity of N_(2) gas is produce in which of the following thermal decomposition reactions ? (Given : Atomic wt : Cr = 52 u, Ba = 137 u)

Answer»

`(NH_(4))_(2) Cr_(2)O_(7) (s) rarr N_(2)(g) + 4H_(2) O (g) + Cr_(2)O_(3) (s)`
`2NH_(4)NO_(3) (s) rarr 2N_(2) (g) + 4H_(2) O (g) + O_(2) (g)`
`Ba(N_(3))_(2) (s) rarr Ba (s) + 3N_(2) (g)`
`2NH_(3) (g) rarr N_(2) (g) + 3H_(2) (g)`

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