Explain the following giving examples.

(a) saturated solution

(b) pure substance

(c) colloid

(d) suspension



(a) Saturated Solution - A solution in which no more solute can be dissolved without raising temperature is called saturated solution.

For example, 36g of salt in 100g of water.

Saturated solution


(b) Pure substance - The substances that are made up of only one type of particles are called pure substances. For example-Salt, Oxygen, Water.

Molecular representation of Oxygen



(c) Colloid - A colloid is a heterogeneous mixture in which the size of solute particles lies between the size of particles of a solution and suspension and which shows tyndall effect. For example- Milk, Blood

Illustration of a Colloid


(d) Suspension - It is a heterogeneous mixture of small particles of solid in liquid. These particles do not dissolve in the liquid and are visible by the naked eye.


Link:- https://byjus.com/chemistry/suspension/

  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.