In which of the following is light scattering observed?

Select the incorrect statement.

Given below are two statements:
Statement $I :$ Emulsions of oil in water are unstable and sometimes they separate into two layers on standing.
Statement $II :$ For stabilisation of an emulsion,excess of electrolyte is added.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which one is an example of a micellar system?

Dialysis can be used to separate

Point out the false statement.