A colloidal solution of ferric hydroxide sol is prepared by the hydrolysis of FeCl₃. The colloidal p — Surface Chemistry Chemistry Question
Question
A colloidal solution of ferric hydroxide sol is prepared by the hydrolysis of FeCl₃. The colloidal particles of ferric hydroxide is
Answer: A
💡 Solution & Explanation
The hydrolysis of FeCl₃ produces Fe(OH)₃ particles which preferentially adsorb Fe³⁺ ions (or H⁺ ions) from the slightly acidic solution, acquiring a positive charge. Therefore, correct answer is A.
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