A freshly prepared Fe(OH)3 precipitate is peptized by adding solution. The charge on the colloidal p — Surface Chemistry Chemistry Question
Question
A freshly prepared Fe(OH)3 precipitate is peptized by adding $FeCl_3$ solution. The charge on the colloidal particle is due to preferential absorption of
Answer: B
💡 Solution & Explanation
During peptization of Fe(OH)3 by $FeCl_3$, the precipitate surface preferentially adsorbs the common Fe3+ cation, giving the resulting colloidal particles a positive charge.
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