The nature of charge on resulting colloidal particles when $FeC{l}_3$ is added to excess of hot water is:

The correct option is C Positive
If $FeC{l}_3$ is added to excess hot water, a positively charged sol, hydrated ferric oxide is formed due to adsorption of $F{e}^{3+}$ ions. Hence, the resulting charge on colloidal particle is positive.