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Carbon and its Compounds — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceCarbon and its Compounds1 Mark
MCQ
In a soap micelle, the soap molecules are arranged radially with:
  • A
    Ionic ends directed towards the centre and hydrocarbon ends directed outwards.
  • ✓
    Hydrocarbon ends directed towards the centre and ionic ends directed outwards.
  • C
    Both ionic ends and hydrocarbon ends directed toward the centre.
  • D
    Both hydrocarbon ends and ionic ends directed outwards
✓

Answer

Correct option: B.
Hydrocarbon ends directed towards the centre and ionic ends directed outwards.
In a soap micelle, the soap molecules are arranged radially with the hydrocarbon ends, i.e. hydrophobic, directed towards the centre; and, ionic ends, i.e. hydrophilic, directed outwards.

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