JEE Main & Advanced Chemistry Solutions / विलयन Question Bank Lowering of vapour pressure

  • question_answer
    Lowering of vapour pressure is highest for        [BHU 1997]

    A)                 Urea       

    B)                 \[0.1M\] glucose

    C)                 \[0.1\,M\,MgS{{O}_{4}}\]  

    D)             \[0.1\,M\,BaC{{l}_{2}}\]

    Correct Answer: D

    Solution :

                \[\frac{{{P}^{0}}-{{P}_{s}}}{{{P}^{0}}}=\text{molality}\,\times \text{(1-}\alpha +x\alpha +y\alpha )\] the value of \[{{P}^{0}}-{{P}_{s}}\] is maximum for \[BaC{{l}_{2}}\].


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