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JEE Main & Advanced AIEEE Solved Paper-2003

  • question_answer
    25 mL of a solution of barium hydroxide on titration with \[0.1\] molar solution of hydrochloric acid gave a titre value of 35 mL. The molarity of barium hydroxide solution was     AIEEE  Solved  Paper-2003

    A)                         \[0.07\]                               

    B) \[0.14\]                               

    C) \[0.28\]                               

    D) \[0.35\]

    Correct Answer: A

    Solution :

    Let molarity of \[BA{{(OH)}_{2}}={{M}_{1}}\] \[\therefore \]      Normality \[=2{{M}_{1}}\] (\[\therefore \]N = Valency \[\times \] M) Molarity of \[HCl=0.1\,M=0.1\,N\]                                 \[{{N}_{1}}{{V}_{1}}={{N}_{2}}{{V}_{2}}\]                                 \[2\,{{M}_{1}}\times 25=0.1\times 35\]                                 \[{{M}_{1}}=0.07\,M\]


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