PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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In your childhood, you might have played in/with mud. But, have you ever gave a thought, what happens when we add the mud to freshwater?
 
Will it dissolve or not?
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Mud
 
We know that the soils or mud are solid-state, whereas water is in a liquid state. And when you mix these two substances, mud or soil do not dissolve in the water. Therefore, this kind of solution is known as suspension.
Suspension:
  • The heterogeneous mixture in which the solute particles do not dissolve in the solvent and settle down entirely in the medium.
  • We can filter the undissolved particles by the filtration method. And, thesse particles are visible to the naked eye.
Example:
1. Clay mixture with water
 
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2. Flour in water
 
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3. Mixture of chalk and water
 
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Properties of a suspension:
  
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Suspension
 
1. Suspension is a heterogeneous mixture.
2. The solute particle settle down when it is left undisturbed because suspensions are unstable. 
3. You can see these suspension particle settles through your naked eye. 
 
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Tyndall effect
 
4. Suspension particles scatter a beam of light passing through it and make its path visible.
Note:
  • When the suspensions settle down, the beam of light is not scattered.
  • The suspensions can be separated by the filtration process.