On the basis of molecular orbital theory discuss the formation of carbon molecule.

Explanation

The carbon molecule is formed by combination of two carbon atoms. Its electronic configuration is `sigma1s^(2), sigma^(**)1s^(2), sigma2s^(2), sigma^(**)2s^(2), (pi2p_(x)^(2)= pi2p_(y)^(2))`. The bond order 2 and `C_2` molecule should be diamagnetic. Bond order `=(1)/(2)[8-4]=2`. In this, carbon atoms are joined by double bond.