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A non-metal A which is the largest constituent of air, when heated with \(H_2\) in \(1 : 3\) ratio in the presence of catalyst (\(Fe\)) gives a gas B. On heating with \(O_2\), 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.
Answer variants:
\(NH_3\)
\(HNO_3\)
\(N\)
\(S_2\)
\(NO\)
\(SO_2\)
\(HSO_3\)
\(N_2\)
\(H_2SO_4\)
\(NO_2\)
A:
B:
C:
D:
b. To which group of periodic table does this non-metal belong?
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