What is Suspension?

It is a heterogeneous mixture of small particles of solid in liquid

In this case, particles of solid do not dissolve in liquid  but spread throughout the liquid

 

Example 1

Mixture of chalk and Water

Chalk particles do not dissolve in water but spread evenly throughout the water

 

Example 2

Mixture of Sand and Water

Sand Particles do not dissolve in water, they spread evenly throughout the water

 

Properties of Suspension

  • It is heterogeneous mixture
  • Size of solid particles is comparatively large (more than 100nm) , so they can be seen easily
  • Particles can be separated by filtration (using filter paper)
  • Particles are not stable , they settle down after some time
  • It shows Tyndall Effect ; if a beam of light passes through a suspension, it scatters it
  1. Class 9
  2. Chapter 2 Class 9 - Is Matter Around Us Pure

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo