Question:
Which of the following is an example of a positively charged sol?
Which of the following is an example of a positively charged sol?
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In colloidal chemistry, the type of charge on the sol depends on the nature of the dispersed phase and the medium. Oxides generally form positive sols.
Updated On: Jun 3, 2025
- As$_2$S$_3$ sol
- Congo red sol
- TiO$_2$ sol
- Gelatin sol
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The Correct Option is C
Solution and Explanation
Positively charged sols include metal oxides like TiO$_2$, Fe(OH)$_3$, and Al(OH)$_3$ which acquire a positive charge in water due to adsorption of H$^+$ ions. TiO$_2$ sol is a well-known positively charged sol.
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