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Question:

The compound that does not produce nitrogen by thermal decomposition is: (NH4)2SO4, NH4NO2, Ba(N3)2, (NH4)2Cr2O7

NH4NO2

(NH4)2Cr2O7

(NH4)2SO4

Ba(N3)2

Solution:

NH4NO2 → 2H2O + N2
2(NH4)2SO4 → 2NH3 + H2SO4
Ba(N3)2 → Ba + 3N2
(NH4)2Cr2O7 → Cr2O3 + N2 + 4H2O
So, the correct answer is (NH4)2SO4