Question
Chemistry Question on p -Block Elements
Nitrogen form N2, but phosphorous form P2, it's at a time convert in P4, reason is
A
Triple bond present between phosphorous atom
B
pπ – pπ bonding is weak
C
pπ – pπ bonding is strong
D
Multiple bond form easilly
Answer
pπ – pπ bonding is weak
Explanation
Solution
The correct option is(B): pπ – pπ bonding is weak. Phosphorus cannot form pπ−pπ bonds due to its larger atomic size. Consequently, P atoms connect with each other through three sigma bonds. In contrast, Nitrogen forms triple bonds, consisting of one sigma bond and two pi bonds (1−σ and 2−π bonds), leading to its existence as diatomic molecules.