A) it is possible to cause artificial rain by throwing electrified sand carrying charge opposite to the one on clouds from an aeroplane
B) lyophilic sol can be coagulated by adding an electrolyte
C) Tyndall effect can be used to distinguish between a colloidal solution and a true solution
D) latex is a colloidal solution of rubber particles which are positively charged.
Correct Answer: D
Solution :
Colloidal solution of rubber are negatively charged.
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