Question

A non-metal a, which is largest constituent of air, when heated with Hydrogen in 1:3
ration 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 Dwhich acts as a strong oxidizing agent. Identify A, B, C, D, & E and to which group of
periodic table they belong.

Answer 1

Explanation:

A is Nitrogen, which makes upto 78% of the atmosphere

B is ammonia N₂ + 3H₂= 2NH₃

C is NO₂ , which is also known as Nitric oxide N₂ + 2O₂ = 2NO₂

D is Nitric acid, NO₂ + H₂O = HNO₃

This is a strong oxidising agent

This element belongs to the 15th group and 2nd period of the periodic table

There is no 'E'

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Answer 2

Answer:

the above is correct✅☺