Two pi and half sigma bonds are present in :

Options

A. `N_(2)^(+)`
B. `N_(2)`
C. `O_(2)^(+)`
D. `O_(2)`

Answer

A

Explanation

(a) `N_(2)^(+):(KK)(sigma2s)^(2)(sigma^(**)2s)^(2)(pi2p_(x))^(2)(pi2p_(y))^(2)(sigma2p_(z))^(1)`
`B.O=(7-2)/(2)=2.5, 2pi and (1)/(2)sigma`
(b) `N_(2):(KK)(sigma2s)^(2)(sigma^(**)2s)^(2)(pi2p_(x))^(2)(pi2p_(y))^(2)(sigma2p_(z))^(2)`
`B.O=(8-2)/(2)=3,2pi and 1sigma`
(c ) `O_(2)^(+):KK(sigma2s)^(2)(sigma^(**)2s)^(2)(sigma2p_(z))^(2)(pi2p_(x))^(2)(pi2p_(y))^(2)(pi^(**)2p_(x))^(1)`
`B.O=(8-3)/(2)=2.5,1.5pi and 1 sigma`
(d ) `O_(2):KK(sigma2s)^(2)(sigma^(**)2s)^(2)(sigma2p_(z))^(2)(pi2p_(x))^(2)(pi2p_(y))^(2)(pi^(**)2p_(x))^(1)(pi^(**)2p_(y))^(1)`
`B.O=(8-4)/(2)=2,1pi and 1sigma`