Q. Which of the following statements is incorrect?
A) $He_{2}$ does not exist because its bond order is zero
B) $O_{2},O_{2}^{-}$ and $O_{2}^{+}$ are all paramagnetic
C) Any two atomic orbitals can combine to form two molecular orbitals
D) $\pi(2p_{x})$ and $\pi(2p_{y})$are degenerate molecular orbitals
Explanation
(c)
Only those atomic orbitals combine, that have nearly equal energy
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.