Properties Of Solids And Liquids Question 367

Question: Soap helps in cleaning clothes, because[DPMT 1983, 2001]

Options:

A)Chemicals of soap change

B) It increases the surface tension of the solution

C) It absorbs the dirt

D) It lowers the surface tension of the solution

Show Answer

Answer:

Correct Answer: D

Solution:

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.



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