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Question: Answered & Verified by Expert
(NH4)2Cr2O7 on heating liberates a gas. The same gas will be obtained by
Chemistryp Block Elements (Group 15, 16, 17 & 18)NEET
Options:
  • A heating NH4NO3
  • B heating NH4NO2
  • C treating H2O2 with NaNO2
  • D treating Mg3N2 with H2O
Solution:
1183 Upvotes Verified Answer
The correct answer is: heating NH4NO2
Here nitrogen gas is formed in both the processes as follows
( NH 4 ) 2 Cr 2 O 7 → Δ N 2 + Cr 2 O 3 +4 H 2 O
NH4NO2→ΔN2+2H2O

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