Adding detergent to water helps in removing dirty greasy stains. This is because - VgyanHub

Question:

Adding detergent to water helps in removing dirty greasy stains. This is because 1.It increases the oil-water surface tension 2.It decreases the oil-water surface tension 3. It increases the viscosity of the solution 4.Dirty is held suspended surrounded by detergent molecules

Options :

a) 2 and 4
b) 1 only
c) 3 and 4
d) 4 only

Answer :

a) 2 and 4

Answer Steps :

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