The correct order of bond order values among the following
(i) `NO^(-)` (ii) `NO^(+)`
(iii) `NO` (iv) `NO^(2+)`
(v) `NO^(2-)`

Options

A. `(i) lt(iv) lt(iii)lt(ii)lt(v)`
B. `(v)=(ii)lt(i)lt(iv)lt(iii)`
C. `(v)lt(i)lt(iv)=(iii)lt(ii)`
D. `(ii)lt(iii)lt(iv)lt(i)lt(iv)`

Answer

C

Explanation

`NO:KK(sigma_(2s))^(2)(sigma_(2s)^(**))^(2)(pi_(2p_(x)))^(2)(pi_(2p_(y)))^(2)(sigma_(2p_(z)))^(2)(pi_(2p_(x))^(**))^(1)`
`"B.O."=(8-3)/(2)=2.5`
(i) `"B.O. "(NO^(-))=(8-4)/(2)=2`
(ii) `"B.O. "(NO^(+))=(8-2)/(2)=3`
(iii) `"B.O. "(NO)=2.5`
(iv) `"B.O. "(NO^(2+))=(7-2)/(2)=2.5`
(v) `"B.O. "(NO^(2-))=(8-5)/(2)=1.5`
`therefore" Correct order is : "(v) lt (i) lt (iv)=(iii)lt (ii)`