Which one of the following statements is NOT correct?
- A. The molecules of soap are sodium or potassium salts of long chain fatty acids
- B. The molecules of soap contain both hydrophobic and hydrophilic ends
- C. Detergents are more effective than soaps in hard water
- D. In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside ✓
Correct Answer: D. In micelles the ionic-end of the molecules is towards oil droplet while the other end faces outside
Explanation
In a micelle, the hydrophobic (non-polar) hydrocarbon end of the soap molecule points towards the oil droplet, while the hydrophilic ionic end faces outward towards the water.
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