multi choice, choose one answer for each question4. Water is a polar solvent and hexane (C6H14) is a nonpolar solvent. Which of the following correctly describes the solubility of the solute?a. mineral oil, soluble in waterb. CCl4, soluble in waterc. CaCl2, soluble in hexaned. NaHCO3, soluble in watere. octane (C8H18), soluble in water5. Oil does not dissolve in water becausea. water is saturated.b. oil is polar.c. oil is nonpolar.d. water is nonpolar.e. oil is hydrated.6. In a saturated solution, the rate at which the solute dissolvesa. cannot be changed by changing the temperature of the solution.b. depends on the number of ions the solute dissociates into.c. equals the rate of crystallization of the solute.d. can be increased by cooling the solution.e. depends on the amount of material undissolved.