How the sol of collodiion is obtained?

Which of the following ion has the highest coagulation power for the sol. Which is obtained by the following reaction? FeCl_(3)("excess")+NaOHtoSol

Which of the following ion has the highest coagulation power for the sol. Which is obtained by the following reaction? FeCl_(3)("excess")+NaOHtoSol

On adding AgNO_(3) solution into KI solution, a negatively charged coll oidal sol is obtained when they are in :

on adding AgNO_(3) solution into KI solution , a negatively charged colloidal sol is obtained when they are in :

On adding AgNO_(3) solution into KI solution, a negatively charge colloidal sol is obtained when they are in :

on adding AgNO_(3) solution into KI solution , a negatively charged colloidal sol is obtained when they are in :