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

  • question_answer
    The \[{{K}_{SP}}\] of \[AgI\] is \[1.5\times {{10}^{-16}}\]. On mixing equal volumes of the following solutions, precipitation will occur only with [AMU 2000]

    A)                 \[{{10}^{-7}}M\,A{{g}^{+}}\] and \[{{10}^{-19}}M\,{{I}^{-}}\]

    B)                 \[{{10}^{-8}}M\,A{{g}^{+}}\]and \[{{10}^{-8}}M\,{{I}^{-}}\]

    C)                 \[{{10}^{-16}}M\,A{{g}^{+}}\]and \[{{10}^{-16}}M\,{{I}^{-}}\]

    D)                 \[{{10}^{-9}}M\,A{{g}^{+}}\]and \[{{10}^{-9}}M\,{{I}^{-}}\]

    Correct Answer: B

    Solution :

               \[{{K}_{sp\,}}\,\,\text{of}\,\,AgI=1.5\times {{10}^{-16}}\]                    \[{{10}^{-8}}\,\,M\,\,A{{g}^{+}}\,\,\text{and}\,\,{{10}^{-8}}\,\,M\,\,{{I}^{-}}\]                    \[\text{Ionic}\,\,\text{product}={{10}^{-16}}\]                                 \[{{K}_{sp}}=\text{Ionic}\,\,\text{product}\]


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