Which of the following option with respect to increasing bond dissociation energies is correct?

Options

A. `NO lt C_(2) lt O_(2) lt He_(2)^(+)`
B. ` C_(2) lt NO lt He_(2)^(+) lt O_(2)`
C. ` He_(2)^(+) lt O_(2) lt NO lt C_(2)`
D. ` He_(2)^(+) lt O_(2) lt C_(2) lt NO`

Answer

d

Explanation

`He_(2)^(+) bond order = (2-1)/(2) = (1)/(2) : O_(2)^(-) bond order = (10-7)/(2) = 1.5`
`C_(2) = bond order = (8-4)/(2) = 2 : NO bond order = (10-5)/(2) = 2.5`
Bond order `alpha` bond dissociation energy.