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  3. WB JEE Medical

WB JEE Medical WB JEE Medical Solved Paper-2006

  • question_answer
    What will be the pH value of 0.05 M \[Ba{{(OH)}_{2}}\]solution?

    A)  12                                         

    B)  13

    C)  1                                            

    D)  12.96

    Correct Answer: B

    Solution :

                     \[0.05\,M\,Ba{{(OH)}_{2}}\]Solution \[\cong 2\times 0.5N\,Ba{{(OH)}_{2}}\] \[\cong 0.10\,N\,\,Ba{{(OH)}_{2}}\]                 \[\therefore \]                  \[pOH=-\log [O{{H}^{-}}]\]                                 \[=-\log (0.10)=1\]                                 \[pH=14-pOH=14-1=13\]


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