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?
(a) N2 is largest constituent of air, when heated with H2 in the ratio of 1 : 3 in the presence of catalyst (Fe) gives a gas NH3(B).
Nitrogen reacts with oxygen on heating to form nitrogen monoxide ‘C’, which gets oxidised in the presence of O2 to nitrogen dioxide. Nitrogen dioxide dissolves in water in the presence of oxygen to form nitric acid which is an oxidising agent.
‘A’ is N2, ‘B’ is NH3, ‘C’ is NO and ‘D’ is HNO3.
(b) Group 15