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Question

Among the following, the false statements is:


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

The correct option is C latex is a colloidal solution of rubber particles which are positively charged
Latex is a colloidal solution of rubber particles which are negatively charged. Rubber is obtained by coagulation of latex.

Hence, the correct answer is option $$\text{A}$$

Chemistry

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