Question:
The nature of charge on resulting colloidal particles when $\mathrm{FeCl}_{3}$ is added to excess of hot water is:
Correct Option: 1
Solution:
If $\mathrm{FeCl}_{3}$ is added to excess of hot water, a positively charged sol of hydrated ferric oxide is formed due to adsorption of $\mathrm{Fe}^{3+}$ ions.
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