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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Hydrogenion concentration pH scale and buffer solution

  • question_answer
    Assuming complete ionisation, the \[pH\] of \[0.1\,M\,\,HCl\]is 1. The molarity of \[{{H}_{2}}S{{O}_{4}}\] with the same \[pH\] is [KCET 1998]

    A)                 0.2         

    B)                 0.1

    C)                 2.0         

    D)                 0.05

    Correct Answer: D

    Solution :

               \[pH=1\] means \[[{{H}^{+}}]={{10}^{-1}}\]M                                 Hence \[[{{H}_{2}}S{{O}_{4}}]=\frac{{{10}^{-1}}}{2}=\frac{1}{20}=0.05\]M


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