Question

What is a pure substance?

Answer 1

Pure substance - The substance that contains the same kind of atoms or molecules throughout the sample and possesses the same physical and chemical properties is called a pure substance.

Important points about pure substances -

1. All elements and compounds are pure substances.
2. They have the same properties throughout the sample.

For example -

1. Elements like gold, silver, hydrogen, etc.
2. Compounds like water, sugar, common salt, etc.