Question

A non-metal A which is the largest constituent of air, when heated with H2 in 1:3 ratio in the presence of catalyst (Fe) gives a gas B. On heating with O2 it gives an oxide C. If this oxide is passed into water in the presence of air, it gives an acid D which acts as a strong oxidising agent.
a) Identify A, B, C and D.
b) To which group of periodic table does this non metal belong?​

Answer 1

A - N ( Nitrogen )

B - NH3 ( Ammonia gas )

C - NO2 ( Nitrogen dioxide )

D - HNO3 ( Nitric acid )

Group of A is 15 and period number is 2.

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