Ferric chloride is applied to stop bleeding because [JEE Main 2023, 10 Apr (Shift 2)]

\(C{l}^{-}\) ions cause coagulation of blood.

Blood absorbs \(FeC{l}_{3}\) and forms a complex.

\(F{e}^{3+}\) ions coagulate blood which is a negatively charged sol.

\(FeC{l}_{3}\) reacts with the constituents of blood which is a positively charged sol.