Answer: A double bond, because they overlap orbitals to share two pairs of electrons.
Explanation:
Covalent bond is the bond which is formed with the sharing of the electrons between the two atoms which are taking part in the bond. It is generally formed between the atoms with similar electronegativity values.
It is the bond which is generally occurs within non metals as they share electrons to complete their octet.
Oxygen is the element of group 16 and third period. The atomic number of oxygen is 16 and the symbol of the element is O.
The electronic configuration of the element oxygen is:-[tex][Ne]3s^23p^4[/tex]
As oxygen needs two electrons to complete their octet, thus it will form a double bond with other oxygen atoms forming two double bonds.
