Answer
Two examples of allotropes in molecular state are Ozone (O3) and Oxygen (O2). Oxygen has diatomic molecules.
Work Step by Step
Allotropy refers to the existence of an element in two or more different structural forms. Oxygen (O) exists as Ozone (O3) and Oxygen (O2) molecules which have different structures. Oxygen molecules are diatomic because it has two atoms per molecule. While ozone molecules are triatomic since it has 3 atoms per molecule.
