12th Class Chemistry Solutions / विलयन Question Bank MCQs - Solutions

  • question_answer
    The relative lowering in vapour pressure is proportional to the ratio of number of

    A) solute molecules to solvent molecules

    B) solvent molecules to solute molecules

    C) solute molecules to the total number of molecules in solution

    D) solvent molecules to the total number of molecules in solution.

    Correct Answer: C

    Solution :

    \[\frac{P{}^\circ -{{P}_{S}}}{P{}^\circ }=\frac{{{n}_{2}}}{{{n}_{1}}+{{n}_{2}}}\]


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