Question

The element that shows greater ability to form pπ-pπ multiple bonds, is :

(1) C

(2) Si

(3) Ge

(4) Sn

Answer 1

Correct option: (1) C

Explanation:

Carbon has unique ability to form pπ-pπ multiple bonds with itself and with other atoms of small size. Heavier elements do not form pπ-pπ bonds because their atomic orbitals are too large and diffuse to have effective overlapping.