Question

Which pair of elements can from multiple bond with itself and oxygen?

• A. $F,N$
• B. $N,Cl$
• C. $N,P$
• D. $N,C$

Answer 1

The correct option is D $N,C$

Carbon and nitrogen has a unique ability to form $p\pi -p\pi$ multiple bonds with itself and with other atoms of small size and high electronegativity.
Few examples of multiple bonding are $C=C,C=O,N=C$
Hence, option (d) is a correct answer.