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 Soap helps in cleaning clothes, because

  • Option 1)

     Chemicals of soap change

  • Option 2)

     It increases the surface tension of the solution

  • Option 3)

     It absorbs the dirt

  • Option 4)

     It lowers the surface tension of the solution

 

Answers (1)

best_answer

As we learnt in 

Surface tension -

Due to surface tension, liquids tend to minimize their surface area.

-

 

Soap helps to lower the surface tension of solution, thus soap get stick to the dust particles and grease and these are removed by action of water.


Option 1)

 Chemicals of soap change

Incorrect

Option 2)

 It increases the surface tension of the solution

Incorrect

Option 3)

 It absorbs the dirt

Incorrect

Option 4)

 It lowers the surface tension of the solution

Correct

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