The number of antibonding electron pairs in `O_(2)^(2-)` molecular ion on the basic of molecular orbital theory is

Options

A. ) 4
B. 3
C. 2
D. 5

Answer

A

Explanation

Configuration of `O_2^-` ion is `KK(sigma_(2s))^2(sigma_(2s)^**)^2(sigma_(2p_z))^2 (pi_(2p_x))^2 (pi_(2p_y))^2 (pi_(2p_x)^**)^2 (pi_(2p_y)^**)^2`