Among the following, the false statement is :

Engineering

Chemistry

Adsorption

Emulsion Preparation and Properties

Colloids Preparation and Properties

Question

Among the following, the false statement is :

Latex is a colloidal solution of rubber particles which are positively charged

Tyndall effect can be used to distinguish between a colloidal solution and a true solution.

Lyophilic sol can be coagulated by adding an electrolyte

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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The false statement is: "Latex is a colloidal solution of rubber particles which are positively charged".

Latex is a colloidal dispersion of rubber particles, but they are typically negatively charged due to adsorbed anions like carboxylate groups ( $R - C O_{2}^{-}$ ). This negative charge provides stability by causing electrostatic repulsion between particles, preventing coagulation.