34. The relative lowering of the vapour pressure is equal to the ration between the number of
a. Solute molecules and solvent molecules
b. Solute molecules and the total molecules in the solution
c. Solvent molecules and the total molecules in the solution
d. Solvent molecules and the total number of ions of the solute
Ans. b
Explanation : The relative lowering of the vapour pressure of dilute solution is equal to the mole fraction of the solute molecule present in the solution
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