Which of the following group-15 element forms \(p\pi -p\pi\) bond and strongest basic hydride? (memory based jee mains s…

Nitrogen (Z=7) forms strong pπ−pπ bonds (e.g., N≡N in N₂) due to its small size and effective orbital overlap. It also has the strongest basic hydride (NH₃) because of its highly available lone pair. Heavier Group-15 elements (P, As, Sb) have weaker bonding and less basic hydrides. Correct answer: (A) Z=7.