NEET Sample Paper NEET Sample Test Paper-50

  • question_answer pH of a 0.1 M monobasic acid is measured to be 2. Its osmotic pressure at a given temperature T K is-

    A) 0.1 RT              

    B) 0.11 RT

    C) 1.1 RT              

    D) 0.01 RT

    Correct Answer: B

    Solution :

    \[{{\left[ H \right]}^{+}}\,\,=\,\,C\alpha \] \[{{10}^{-2}}\,=\,\,0.1\times \alpha \,\,\,\,\,\,\,\,\,\,\,\left\{ \begin{matrix}    \because \,\,pH\,\,=\,\,2  \\    \therefore \,\,\,\,{{\left[ H \right]}^{+}}\,\,=\,\,{{10}^{-2}}  \\ \end{matrix} \right.\]             \[\alpha =0.1\] \[i=1-\alpha +n\alpha \] \[\Rightarrow \,\,\text{ }1\,\,-\,\,a\,\,+\,\,2\alpha \] \[i=1+\alpha =1.1\] \[\pi \,\,=\,\,iCRT.\]


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