Which of the following is a molecule of a compound?
Water
The explanation for the correct option- (C) Water
Molecules - The chemical substance formed by a reaction of two or more atoms of the same or different kind and is the smallest unit of a compound is called a molecule.
For example - water molecule (H2O).
The explanation for the incorrect options -
(A) Ozone, (B) Chlorine, and (D) Hydrogen are molecules of gases but they are not compounds.
Hence, option (C) is correct. Water is a molecule of a compound.