Q.

Which of the following statements are true?
I. Soap molecules form micelle around the oil droplet.
II. Polar group of soap molecules interact with water.
III.The negatively charged sheath around the micelles prevent further aggregation.
IV. Hydrophobic group of the soal molecule intract with water.
     Select the correct option.

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a

I, IlI and IV

b

III and IV

c

I,II and IV

d

I, II and III

answer is C.

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Detailed Solution

Soap molecules form micelle around the oil droplet. Polar group of soap molecules interact with water.The negatively charged sheath around the micelles prevent further aggregation.

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