Question

write the molecular formula of a diatomic gas and a triatomic gas

Answer 1

Molecular formula of a diatomic gas is o2 means oxygen nd triatomic gas o3 means ozone.
Hope this will helps you.

Answer 2

Molecular formula of a Oxygen($O_{2}$), is a diatomic gas and carbon dioxide($CO_{2}$), is a triatomic gas.

Explanation:

Diatomic gas : Oxygen($O_{2}$)

• This means 2 atoms of oxygen combine to produce one single molecule of Oxygen.
• Therefore, the atomicity is two. As it requires two atoms to produce one molecule, therefore it is called diatomic gas.

Triatomic gas : carbon dioxide($CO_{2}$)

• Carbon dioxide is a triatomic gas. When 1 carbon atom merges/combines with 2 atoms of oxygen, carbon dioxide is formed.
• Therefore, the atomicity is three. As it requires one single carbon atom and two oxygen atoms to form one molecule of carbon dioxide($CO_{2}$), it is called triatomic gas.

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