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Q.

Identify the statements which are not correct.

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a

Soap sol of sodium palmitate will be coagulated near cathode on electrophoresis.

b

 If on adding electrolyte in an emulsion conductivity decreases it should be an oil in water emulsion.

c

Macromolecular colloids are generally lyophilic.

d

A promotor when taken without catalyst cannot change rate of reaction.

answer is A, B.

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Detailed Solution

On electrophoresis, sodium palmitate soap sol will coagulate close to the cathode. It should be an oil in water emulsion if conductivity reduces after adding electrolyte to an emulsion.
It is an oil-in-water form of emulsion if, after adding electrolyte, the conductivity rises.

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