Which part of a soap molecule attracts oil and dirt?
Answer and explanation
Correct answer: Hydrophobic tail
The hydrophobic tail of a soap molecule is a long hydrocarbon chain that is attracted to non-polar substances such as oil and grease. Its hydrophilic head remains in water. Thus, the tails surround the oily dirt to form micelles, which are washed away with water. Exam tip: the part that attaches to oil is the hydrophobic tail.
Frequently asked questions
What is the correct answer to this question?
Hydrophobic tail
Why is this the correct answer?
The hydrophobic tail of a soap molecule is a long hydrocarbon chain that is attracted to non-polar substances such as oil and grease. Its hydrophilic head remains in water. Thus, the tails surround the oily dirt to form micelles, which are washed away with water. Exam tip: the part that attaches to oil is the hydrophobic tail.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Carbon and its Compounds.
