Q.

The bond between two identical non-metallic atom has a pair of electron:

1 Unequally shared between two atoms.  
2 Transferred completely from one atom to another  
3 With identical spins.  
4 Equally shared between them.  

Ans.

(4)

The bond between two identical non-metallic atoms has a pair of electron equally shared between them. This is due to the equal sharing of electrons between the bonded atoms. Hence, the bonded atoms will hold on the shared pair of electrons.