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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.
Answers (1)
The answer is the option (ii, iv). Colloidal particles have equal and similar charges because of which they repel each other. Brownian movement does not allow the colloidal sols to settle down. Hence, it helps in providing stability.
View full answer
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