What are the two allotropic forms of oxygen? Differentiate between them and write the method of preparation of each of these.

Oxygen exists in two allotropic forms: dioxygen (O₂) and ozone (O₃).

1. Dioxygen (O₂) is the most common and stable allotrope of oxygen. It is a diatomic molecule consisting of two oxygen atoms bonded covalently. It constitutes about 21% of the Earth's atmosphere and is essential for respiration in most living organisms. Dioxygen is a colorless, odorless, and tasteless gas at room temperature, with a boiling point of -183°C _________ ____ ___ ________ ____ __________ __________ ___ ______ ___ __________.
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