JEE Main Chemistry question

Chemistry Solutions JEE Main

When a non-volatile solute is dissolved in a solvent, the relative lowering of vapour pressure is equal to

(A)Mole fraction of soluteCorrect
(B)Mole fraction of solvent
(C)Concentration of the solute in gram per litre
(D)Concentration of the solute in gram per 100 mL

Answer: (A)

Solution

By Raoult's law, , the mole fraction of the non-volatile solute, confirming option (A).

Question ID VK-143164