Question

Find the element, which displays greater ability to form $p_{\pi }-p_{\pi }$ multiple bonds to itself and to other elements in the same block.

• A. Na
• B. Mg
• C. Li
• D. N

Answer 1

Answer: (D)

$Li,Na$ and $Mg$ belong to $s$-block family.
These will never form $p\pi -p\pi$ bond for any reason.
Only $N$ of group- $15$ family has unique ability to form $p\pi -p\pi$ multiple bond with itself and to other elements having small size and high electronegativity in the same $p$-block family like $C$ and $O$.