Question

Oxygen molecule is formed by

• A. One axial s-s overlap and one p-p axial overlap
• B. Two p-p axial overlaps
• C. two p-p sidewise overlaps
• D. One p-p axial and one p-p sidewise overlap.

Answer 1

Answer: (D)

One p-p axial and one p-p sidewise overlap.

Answer 2

: Configuration of O atom

Configuration of O molecule

$\sigma$and of O = O is formed by axial overlapping of p – p orbital while $\pi$bond is formed by sidewise overlapping of p – p orbital.