The statements which correctly describe the Cl-Cl bond is:
It is a sigma bond.
It is formed by overlap of two hybrid orbitals.
Explanation:
The 2 atoms of the chlorine atom are bonded by single bond by sharing of electrons as chlorine has 7 electrons in its outer shell.
1s22s2p63s23p5 configuration of each atom
A covalent bond is formed between the two chlorine atoms.
The electrons are shared by molecular orbitals by overlapping the orbital as each of the chlorine atom will try to complete its octet. The electrons from p orbitals are shared hence sigma bond.
There is no hybridization in Cl2 it only has only overlapping of electrons in p orbitals.
