Question

in a class,teacher asked students to write the molecular formula of oxygen .shamita wrote the formula as O2 and priyanka as O .which
one is correct?state the reason

Answer 1

Shamita is correct. it is because molecule of oxygen contains two atoms of oxygen. it requires 2 oxygen because of 2 covalent bonds between them

Answer 2

The answer given by Shamita is correct.

Explanation:

• Oxygen is a diatomic element because it is composed of 2 atoms of oxygen atom.
• In free state oxygen always exist as $O_2$ and not as O.
• In the structure of $O_2$, two atoms of oxygen are bonded together with a covalent bond.
• As Samita wrote $O_2$ as a molecular formula of oxygen, it is the correct answer for the question asked by the teacher.

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