Water is a polar solvent and methane is a non-polar solvent. In which solvent is each of the following more likely to be soluble?

a) vegetable oil, nonpolar

b) benzene, nonpolar

c) LiCl, ionic

d) Na2SO4, ionic

A) vegetable oil and

b) benzene are both nonpolar so they dissolve in methanol by forming the free molecules in each other.

c) LiCl and

d) Na2SO4 are both ionic hence dissolve in water by ionising and forming free ions.