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Introduction to Oxidation and Reduction

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Question

What happens when a freshly prepared $F e ({O H)}_{3}$ is shaken with a little amount of dilute solution of ${F e C I}_{3}$ ?

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Solution

When freshly prepared ${F e (O H)}_{3}$ is shaken with a little amount of dilute solution of $F e C l_{3}$ , Peptisation process takes place by converting $F e {(O H)}_{3}$ precipitate into positively charged colloid solution.
$∙ P e p t i s a t i o n -$ Ions are electrolyte are adsorbed by precipitate particles.

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Q. What happens when a freshly prepared precipitate of

F e (O H)_{3}

is shaken with a small amount of

F e C l_{3}

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(c) an emulsion is centrifuged?

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