Q. Which of the following is not correct with respect to bond length of the species?
A) $C_{2} > C_{2}^{2 -}$
B) $B_{2}^{+} > B_{2}$
C) ${Li}_{2}^{+} > {Li}_{2}$
D) $O_{2} > O_{2}^{-}$
Explanation
(d)
$O_{2} < \ O_{2}^{-}$
Bond order
$C_{2} = 2$
$C_{2}^{2 -} = 3$
$B_{2} = 2$
$B_{2}^{+} = 1.5$
$Li_{2} = 1$
${Li}_{2}^{+} = 0.5$
$N_{2} = 3$
$N_{2}^{+} = 2.5$
$O_{2} = 2$
$O_{2}^{-} = 1.5$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.