Which of the following options is a correct statement? (a) Brownian motion destabilises sols (b)...

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Which of the following options is a correct statement?
(a) Brownian motion destabilises sols
(b) Any amount of dispersed phase can be added to emulsion without destabilising it
(c) Mixing two oppositely charged sols in equal amount neutralises charges and stabilises colloids
(d) Presence of equal and similar charges on colloidal particles provides stability to the colloidal solution
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