Q 1 :    

Identify the incorrect statement.             [2024]

• ${\mathrm{PEt}}_3$ and ${\mathrm{AsPh}}_3$ as ligands can form $\mathrm{d\pi }–\mathrm{d\pi }$ bond with transition metals.

   

• The N—N single bond is as strong as the P—P single bond.

   

• Nitrogen has unique ability to form $\mathrm{p\pi }–\mathrm{p\pi }$ multiple bonds with nitrogen, carbon and oxygen.

   

• Nitrogen cannot form $\mathrm{d\pi }–\mathrm{p\pi }$ bond as other heavier elements of its group.