Q. Which of the following has a bond order of 1.75?
A) $ClO_{3}^{-}$
B) $ClO_{4}^{-}$
C) $NO_{3}^{-}$
D) $CO_{3}^{2 -}$
Explanation
(b)
The resonating structure of $ClO_{4}^{-}$are as
[image:4_image90.emf]
$\Rightarrow$Bond order $= \frac{Total\ number\ of\ bonds\ between\ Cl\ and\ O}{Total\ number\ of\ resonating\ structure}$
$= \frac{7}{4} = 1.75$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.