Nitrogen can be purified from the impurities of oxides of nitrogen and – InterviewSolution

1.	Nitrogen can be purified from the impurities of oxides of nitrogen and ammonia by passing through:
Answer» CONC. HCl Alkaline SOLUTION of pyrogallol A solution of `K_2Cr_2O_7` ACIDIFIED with `H_2SO_4` A solution of KOH Answer :D

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