UPSC NDA I 2025 General Ability Paper

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Question : 71 of 150

Marks: +1, -0

Which one of the following statements is NOT correct ?

The molecules of soap are sodium or potassium salts of long chain fatty acids
The molecules of soap contain both hydrophobic and hydrophilic ends
Detergents are more effective than soaps in hard water
In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside

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