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The soap molecule has a
A. hydrophilic head and a hydrophobic tail
B. hydrophobic head and a hydrophilic tail
C. hydrophobic head and a hydrophobic tail
D. hydrophilic head and a hydrophilic tail

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Correct Answer - A
A soap molecule is made up of two parts : A long hydrocarbon part and a short ionic part `-COO^(-)Na^(+)` group. The long hydrocarbon chain is hydrophobic (water repelling) and ionic portion is hydrophilic (water attracting).
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