Which of the following species is paramagnetic in nature ?

Options

A. `H_(2)`
B. `Li_(2)`
C. `B_(2)`
D. `N_(2)`

Answer

C

Explanation

`B_(2)` molecule has the following configuration :
`(sigma1s^(2))(sigma^(**)1s^(2))(sigma2s^(2))(sigma^(**)2s^(2))(pi 2p_(x)^(1)=pi2p_(y)^(1))`