Which of the following is most effective in causing the coagulation of ferric hydroxide sol? — Surface Chemistry Chemistry Question
Question
Which of the following is most effective in causing the coagulation of ferric hydroxide sol?
Answer: D
💡 Solution & Explanation
Ferric hydroxide sol is positively charged. According to Hardy-Schulze rule, the anion with the highest charge has maximum coagulating power. Fe(CN)₆³⁻ has a -3 charge. Therefore, correct answer is D.
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