1.

In which of the following reaction N_(2) is not obtained?

Answer»

`NH_(4)Cl +NaNO_(2) overset(DELTA)to `
`NH_(4)Cl+NaNO_(3) overset(Delta)to`
`(NH_(4))_(2)Cr_(2)O_(7) overset(Delta)to`
`Ba(N_(3))_(2) overset(Delta)to `

ANSWER :2


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