(NH_4 )_2Cr _2O_7 on heating liberates a gas. The same gas will b… - Vidyadip

MCQ

$(NH_4 )_2Cr _2O_7$ on heating liberates a gas. The same gas will be obtained by

✓
Heating $NH_4NO_2$
B
Heating $NH_4NO_3$
C
Heating $(NH_4)_2SO_4$
D
Treating $Mg_3N_2$ with $H _2O$

✓

Answer

Correct option: A.

Heating $NH_4NO_2$

a
$(NH_ 4)_2Cr_2O_7 \to N_2 + Cr_2O_3 + 4H_2O$

$NH_4NO_2 \to N_2 + H_2O$

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