Non-polar substances can not be dissolved .

Solution:

Non-polar substances can not be dissolved by the polar substances.

Because water is polar and oil is nonpolar, their molecules are not attracted to each other. The molecules of a polar solvent like water are attracted to other polar molecules, such as those of sugar. ... So many substances dissolve in water that it is sometimes called the universal solvent.

Because Ionic compounds, such as sodium chloride, are also highly soluble in water. water molecules are polar, they interact with the sodium and chloride ions. In general, polar solvents dissolve polar solutes, and nonpolar solvents dissolve nonpolar solutes.

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