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Ferric chloride forms both positively and negatively charged sols. Explain. |
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Answer» Solution :When `Fecl_(3)` is added to excess of HOT water , a positively chargedsol of hydrated FERRIC oxide is FORMED due to adsorption of ferric ions. `Fe_(2)O_(3).xH_(2)O //Fe^(3+)`is a positively charged sol. When `FeCl_(3)` is added to alkali solution , a NEGATIVELY charged sol of ferric oxide is formed due to adsorption of hydroxyl ions. `Fe_(2)O_(3).xH_(2)O //OH^(-)` is a negatively charged sol. |
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