Question

without mno2 how to make oxygen?​

Answer 1

Answer:

The chemical formula of oxygen also known as dioxygen is O2. This formula is given so because oxygen usually combines with another oxygen by forming a covalent bondMost medical oxygen is produced in factories, of which there are around 500 in India. They extract oxygen from air by cooling it until it becomes liquid, and then separating out the oxygen, nitrogen and other parts, based on their boiling points

Explanation:

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