JEE Main | 2018Nitrogen Containing CompoundHard

Question

The compound that does not produce nitrogen gas by the thermal decomposition is

Options

A.

(NH4)2Cr2O7

B.

NH4NO2

C.

(NH4)2SO4

D.

Ba(N3)2

Solution

1. (NH4)2 Cr2O7 →∆Cr2O3 + N2 + 4H2O
2. NH4NO2 →∆ N2 + 2H2O
3. (NH4)2SO4  →∆ 2NH3 + H2SO4
4. Ba(N3)2 →∆ Ba + 3N2
In reaction (3) NH3 is evolved where as in reaction 1, 2 and 4 N2 is evolved.

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