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  • The soap molecule has a (a) hydrophilic head and a hydrophobic tail

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 

Answers (1)

Answer:(a)

Solution:

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) which is tail part and ionic portion is hydrophilic (water attracting) it is polar head.

Therefore, option (a) is correct.

Posted by

infoexpert21

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