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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Critical Thinking

  • question_answer
    Calculate the hydrolysis constant of the salt containing \[N{{O}_{2}}\]. Given the \[{{K}_{a}}\] for \[HN{{O}_{2}}\]   \[=4.5\times {{10}^{-10}}\] [UPSEAT 2001]

    A)                 \[2.22\times {{10}^{-5}}\]            

    B)                 \[2.02\times {{10}^{5}}\]

    C)                 \[4.33\times {{10}^{4}}\]             

    D)                 \[3.03\times {{10}^{-5}}\]

    Correct Answer: A

    Solution :

                    \[h=\frac{{{k}_{w}}}{{{k}_{a}}}=\frac{1\times {{10}^{-14}}}{4.5\times {{10}^{-10}}}=2.22\times {{10}^{-5}}\]


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