Question

An example of a triatomic molecule is:

• A. Ozone
• B. Nitrogen
• C. Carbon monoxide
• D. Hydrogen

Answer 1

The correct option is A

Ozone

Explanation for the correct option:

Option A: ozone has a molecular formula $\left({\mathrm{O}}_3\right)$, which denotes that it contains three atoms. The triatomic molecule contains three atoms.

Explanation for the incorrect options:

Option B: nitrogen has a molecular formula $\left({\mathrm{N}}_2\right)$, which denotes that it contains two atoms.

Option C: Carbon monoxide has a molecular formula $\left(\mathrm{CO}\right)$. That is it contains two atoms, one each from carbon and oxygen.

Option D: hydrogen has a molecular formula ${\mathrm{H}}_2$, which denotes that it contains two atoms.