Benzene is a symmetrical compound and thus it has zero dipole moment and is non-polar, while water is a polar compound possessing dipole moment. When benzene is mixed with water, the molecular attraction will be more and benzene won’t be able to interfere with the water molecules. Hence, it is insoluble in water. Both the carbon and hydrogen in benzene are equidistant and hence the net charge is balanced. Because of the ring structure, the net dipole moment is zero (the opposite charge chancels diagonally). Hence, mixing the charged liquid and uncharged liquid is not possible which results a failure.