In which pair is the stronger bond found in the first species ?

Options

A. `O_(2)^(-),O_(2)`
B. `N_(2),N_(2)^(+)`
C. `NO^(-),NO^(+)`
D. `CO,O_(2)^(2+)`

Answer

2

Explanation

Bond order `:`
`(1) O_(2)^(-)(10-7)//2=1.5,O_(2)=(10-6)//2=2`
`(2) N_(2)=(10-4)//2=3,NO_(2)^(+)=(9-4)//2=2.5`
`(3)` `NO^(+)=(10-4)//2=3,NO^(-)=(10-6)//2=2`
`(4)` `CO=(10-4)//2=3,O_(2)^(2+)=(10-4)//2=3`