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JEE Main & Advanced Chemistry Solutions / विलयन Question Bank Method of expressing concentration of solution

  • question_answer
    \[20\,ml\] of \[HCl\] solution requires \[19.85\,ml\] of \[0.01\,M\,NaOH\] solution for complete neutralization. The molarity of \[HCl\] solution is                                                [MP PMT 1999]

    A)                 0.0099  

    B)                 0.099

    C)                 0.99       

    D)                 9.9

    Correct Answer: A

    Solution :

           \[{{M}_{1}}{{V}_{1}}={{M}_{2}}{{V}_{2}}\]            \[0.01\times 19.85={{M}_{2}}\times 20\]                 \[{{M}_{2}}=0.009925\];  \[M=0.0099\].


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