JEE Main & Advanced Chemistry Equilibrium Question Bank Common ion effect, Isohydric solutions, Solubility product, Ionic product of water and salt hydrolysis

  • question_answer Let the solubility of an aqueous solution of \[Mg{{(OH)}_{2}}\] be x then its \[{{k}_{sp}}\] is        [AIEEE 2002]

    A)                 \[4{{x}^{3}}\]    

    B)                 \[108{{x}^{5}}\]

    C)                 \[27{{x}^{4}}\]  

    D)                 \[9x\]

    Correct Answer: A

    Solution :

    \[Mg{{(OH)}_{2}}\]⇌\[\underset{(X)\,\,\,}{\mathop{M{{g}^{++}}}}\,+\underset{{{(2X)}^{2}}}{\mathop{2O{{H}^{-}}}}\,\]                                 \[{{K}_{sp}}=4{{X}^{3}}\]

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