Question:
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
Solution:
(a). ‘Head’ is a polar group and is attacked towards H2O molecules of water. ‘Tail’ is a long chain of hydrocarbons and is water repellent.