JEE Main & Advanced Chemistry Solutions / विलयन Question Bank Osmosis and Osmotic pressure of the solution

  • question_answer
    Two solutions of \[KN{{O}_{3}}\] and \[C{{H}_{3}}COOH\] are prepared separately. Molarity of both is \[0.1\,M\] and osmotic pressures are \[{{P}_{1}}\] and \[{{P}_{2}}\] respectively. The correct relationship between the osmotic pressures is                [CPMT 1983, 84; Pb CET 2004]

    A)                 \[{{P}_{2}}>{{P}_{1}}\]  

    B)                 \[{{P}_{1}}={{P}_{2}}\]

    C)             \[{{P}_{1}}>{{P}_{2}}\]                

    D)                 \[\frac{{{P}_{1}}}{{{P}_{1}}+{{P}_{2}}}=\frac{{{P}_{2}}}{{{P}_{1}}+{{P}_{2}}}\]

    Correct Answer: C

    Solution :

                \[KN{{O}_{3}}\] dissociates completely while \[C{{H}_{3}}COOH\] dissociates to a small extent. Hence, \[{{P}_{1}}>{{P}_{2}}\].


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