Substance A will not dissolve in water. What can be said about substance A?

It is nonpolar.

It is polar.

It is saturated.

It is unsaturated.

Water molecule has dipole moment because H and O have electronegative differences. Solubility is only possible if boty substances (solute and solute) are like i. e either both must be polar or non-polar. So substance A will not dissolve because it is non-polar whereas water is polar molecule.

It is non polar ... as polar dissolve polar ... like dissolve like! so A must be non polar.