Question:
Which of the following statements are correct?
(i) Mixing two oppositely charged sols neutralises their charges and stabilises
the colloid.
(ii) Presence of equal and similar charges on colloidal particles provides
stability to the colloids.
(iii) Any amount of dispersed liquid can be added to emulsion without
destabilising it.
(iv) Brownian movement stabilises sols.
Solution:
Option (ii) and (iv) are the answers.