The smallest unit of a pure substance which always exist independently and can retain all the physical and chemical properties of that substance is called a molecule.

True

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False

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Solution

The correct option is A True
The smallest unit of a pure substance which always exist independently and can retain all the physical and chemical properties of that substance is called a molecule.
Molecules are made up of groups of atoms.
For example: $H_{2} O, CaO, N_{2}$ etc.
Therefore, the given statement is true.

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Similar questions

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(i) The smallest unit of an element, which may or may not have an independent existence, but always takes part in a chemical reaction, is called …………………. [atom/molecule]

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Statement R: Smallest particle of the substance capable of independent existence is a molecule.

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