Multiple choice

Oxygen and ozone are-

  1. Allotropes

  2. Isotopes

  3. Isomers

  4. Isobars
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A Correct answer
Explanation

Allotropes are different physical forms in which an element can exist. Oxygen (O2) and Ozone (O3) are both composed solely of oxygen atoms but differ in their molecular structure and properties. Isotopes differ in neutron count, isomers differ in molecular arrangement of the same atoms in compounds, and isobars have the same mass number but different atomic numbers.

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