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Question: Answered & Verified by Expert
Assertion (A) The aggregate of carboxylate ions of fatty acids form a spherical shape.
Reason (R) Soap helps in emulsification and washing away of oils.
ChemistrySurface ChemistryAP EAMCETAP EAMCET 2022 (06 Jul Shift 2)
Options:
  • A Both A and R are correct and R is the correct explanation of $A$.
  • B Both $\mathrm{A}$ and $\mathrm{R}$ are correct but $\mathrm{R}$ is not the correct explanation of $A$.
  • C $\mathrm{A}$ is correct but $\mathrm{R}$ is incorrect.
  • D $\mathrm{A}$ is incorrect but $\mathrm{R}$ is correct.
Solution:
2738 Upvotes Verified Answer
The correct answer is: Both $\mathrm{A}$ and $\mathrm{R}$ are correct but $\mathrm{R}$ is not the correct explanation of $A$.
The aggregate of carboxylate ions of fatty acids forms a spherical shape known as micelle.
Soap is emulsifier because it reduces surface tension and it can emulsify fats and oils by forming micelles around oil droplets.
Hence, both A and R are correct but R is not the correct explanation of A.

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