Pure Substances

Last updated at Dec. 16, 2024 by Teachoo

Meaning of Pure

In Common Language - Pure means having no adulteration (or impurities)
In Science , word pure has a different meaning
It means, the substance has a single type of particle.

Hence, Mixture (a substance having more than one particle) is not called a Pure substance.

A glass of water may look pure (as it does not have dirt in it)

But it actually is not pure as it is a mixture of water as well as different minerals and microorganisms in it

Pure Substances	Mixtures
They are made up of only one type of particle.	They are made up of more than 1 type of Particles.
Example: Salt Sugar Oxygen H ₂ O (Water)	Example: Salt Solution is a mixture of Salt and Water Sugar Solution is a mixture of Sugar and Water Air is a mixture of different gases like Nitrogen, Oxygen, Carbon Dioxide Sea Water is a mixture of Water, Salt, Minerals as well as microorganisms
They can be further classified into elements and compounds	They can be further classified into homogeneous mixture and heterogeneous mixture

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