Nitrogen gas is prepared :

Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Compounds of Nitrogen and Phosphorus Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 12, 2026

By heating ammonium nitrate.

By reacting excess chlorine with liquor ammonia.

By passing HNO3 vapours on red hot copper.

By heating lead nitrate.

Text Solution

Verified by Experts

The correct answer is:

(NH4)NO3 gives N2O, chlorine (excess) with liquor NH3 forms NCl3 and Pb(NO3)2 gives NO2 not N2 on heating.

5Cu (red hot) + 2HNO3 5CuO + N2 + H2O

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