Impure substance or Mixture has two or more than two types of substances. Example: Mixtures
The Mixture: The Mixture is the physical combination of two or more types of substances.
Example: Air is a mixture of gases, dust particles and water vapour.
Types of Mixtures
Homogeneous Mixture:
Homo means equal, thus such mixture contains equal distribution of particles. We cannot see particles of such mixture by naked eyes. All solutions are Homogeneous mixtures.
Example : Acid solutions, Salt solution etc
What is a solution?
Solution is a combination of solute and solvent.
Solute: substance with smaller amount in a solution.
Solvent: substance with larger amount in a solution.
Example: If Sulphuric acid is dissolved in water, sulphuric acid is a solute and water is a solvent.
Heterogeneous Mixture:
Hetero means unequal, such mixture contain unequal distribution of particles and we can see the particles either by naked eyes or microscope.
Example: colloid and suspension
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