What happens when a lyophilic sol is added to a lyophobic sol?
(i) Lyophobic sol is protected.
(ii) Lyophilic sol is protected.
(iii) Film of lyophilic sol is formed over lyophobic sol.
(iv) Film of lyophobic sol is formed over lyophilic sol.
The answer is the option (i, iii) Lyophilic sols are more stable than lyophobic sols. On addition of lyophilic sols to lyophobic sols, lyophobic sols are protected due to formation of film of lyophilic sol.