JEE Main 2026 — 5 April, Morning Shift — Question 57

(A) In the case of nitrogen, all oxidation states from +1 to +4 tend to disproportionate in acid solution. For example. $3 \mathrm{HNO}_{2} \rightarrow \mathrm{HNO}_{3}+\mathrm{H}_{2} \mathrm{O}+2 \mathrm{NO}$ (B) Nitrogen form $p_{\pi}-p_{\pi}$ bonds with itself and other elements with small size and high electronegativity, $d_{\pi}-p_{\pi}$ is not possible with itself as it has no d-orbital. (C) The single $\mathrm{N}-\mathrm{N}$ bond is weaker than the single $\mathrm{P}-\mathrm{P}$ bond because of high intereelecronic repulsion of the non-bonding electrons (lone pair), owing to the small bond length. (D) Nitrogen has lowest density in its group. (E) The maximum covalency of nitrogen is four.

Correct answer are (A) and (E)