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Coagulation takes place when sodium chloride solution is added to a colloidal solution of ferric hydroxide.

Coagulation takes place when sodium chloride solution is added to a colloidal solution of ferric hydroxide. 

Grade:12

1 Answers

grenade
2061 Points
7 years ago
 The colloidal particles get precipitated i.e., ferric hydroxide is precipitated. When anexcess of electrolyte (e.g., NaCl solution) is added to thecolloidal solution of ferrichydroxide. This is because of the fact that colloids interact with the ions carrying the chargeopposite (Cl−) to the one present on them. This causes neutralisation, which leads to theircoagulation

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