Question

How is fe(oh)3sol prepared ? what happens when a freshly precipitated fe(oh)3 is shaken with little amount of dilute solution of fecl3?

Answer 1

Ferric Hydroxide is prepared by a Substitution Reaction between Iron(III) and Water
$Fe +H_{2}O$ ⇒ $Fe(OH)_{3}+H_{2}$

By shaking Ferric Hydroxide with Ferric Chloride, peptisation will occur in which the electrolytes are adsorbed by the precipitate particles by converting Ferric Hydroxide precipitate into colloidal solution.