Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Nitrogen Family Single Correct MCQ
Published on: August 12, 2026

In Birkeland-Eyde process, the raw material used is

A
Air
B
C
D

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The correct answer is:
A

Birkeland – Eyde process

Dinitrogen is prepared commercially from air by liquification and fractional distillation. When liquid air is allowed to distil, dinitrogen having lower b.pt (77 K ) distils over first leaving behind liquid oxygen (bpt 90 K ). World wide production of dinitrogen from liquid air is more than 50 million tonns per year.

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