Colourless salt (A) on heating with NaOH gives gas (B). When reaction of (A) with NaOH was complete, solution obtained on reacting `FeSO_(4)` and conc. `H_(2)SO_(4)` gave a brown coloured ring (C ) between two layers. (A) on heating strongly forms (D ) and (E). Compound (E ) is neutral oxide of a dibasic acid (F). Compound (F) isA. `H_(2)NO_(2)`B. cis `H_(2)N_(2)O_(2)`C. trans `H_(2)N_(2)O_(2)`D. both (B) and (C )

Colourless salt (A) on heating with NaOH gives gas (B). When reaction

1.	Colourless salt (A) on heating with NaOH gives gas (B). When reaction of (A) with NaOH was complete, solution obtained on reacting `FeSO_(4)` and conc. `H_(2)SO_(4)` gave a brown coloured ring (C ) between two layers. (A) on heating strongly forms (D ) and (E). Compound (E ) is neutral oxide of a dibasic acid (F). Compound (F) isA. `H_(2)NO_(2)`B. cis `H_(2)N_(2)O_(2)`C. trans `H_(2)N_(2)O_(2)`D. both (B) and (C )
Answer» Correct Answer - D `underset((A))(NH_(4)NO_(3))+NaOHoverset(Delta)(rarr)underset((B))(NH_(3))+NaNO_(3)+H_(2)O` `NO_(3)^(-)+FeSO_(4)+H_(2)SO_(4)rarrunderset("Brown ring ")([Fe(H_(2)O)_(5)NO]SO_(4))` `underset((F))(HO)-overset(ddot)(N)=overset(ddot)(N)-OHoverset(Delta)(rarr)N_(2)O+underset((E))(H_(2)O)` `underset((A))(NH_(4)NO_(3))" "underset((D))(N_(2)O)+underset((E))(2H_(2)O)`

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