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J & K CET Medical J & K - CET Medical Solved Paper-2010

  • question_answer
    The charge on\[Fe{{(OH)}_{3}}\]sol is due to

    A)  adsorption of hydroxyl ion

    B)  adsorption of hydrogen ion

    C)  adsorption of ferric ion

    D)  absorption of ferric ion

    Correct Answer: C

    Solution :

                    \[Fe{{(OH)}_{3}}\]sol carries charge because of the adsorption of ferric ions as \[Fe{{(OH)}_{3}}+FeC{{l}_{3}}\xrightarrow[{}]{{}}\underset{sol\text{ }of\text{ }ferric\text{ }hydroxide}{\mathop{Fe{{(OH)}_{3}}:F{{e}^{3+}}}}\,\] \[+3C{{l}^{-}}\]


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