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NEET Sample Paper NEET Sample Test Paper-3

  • question_answer
    Acetic acid exists in benzene solution in the dimeric form. In an actual experiment the van't Hoff factor was found to the\[0.52\]. Then the degree of dissociation of acetic acid is

    A)  \[0.48\]                       

    B)  \[0.88\]

    C)  \[0.96\]            

    D)  \[0.52\]

    Correct Answer: C

    Solution :

        \[\begin{matrix}    2C{{H}_{3}}COOH  \\    1  \\    1-a  \\ \end{matrix}\begin{matrix}    {{\left( C{{H}_{3}}COOH \right)}_{2}}  \\    0  \\    {\scriptstyle{}^{a}/{}_{2}}  \\ \end{matrix}\] \[i=1-\frac{\alpha }{2}\] \[\alpha =2(1-i)\] \[=2(1-0.52)=0.96\]  


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