Q.

The compound(s) which generate(s) N2 gas upon thermal decomposition below 300°C is (are)

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a

NH4NO3

b

NH42Cr2O7

c

Ba(N3)2

d

Mg3N2

answer is B.

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Detailed Solution

A) NH4NO3Δ belor 300∘C⟶N2O+2H2OB) NH42Cr2O7→ ΔN2+Cr2O3+4H2OC) Ba(N3)2→ ΔBa+3N2D) Mg3N2 (it does not decompose into N2 )
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