Question Detail
Question
Which of the following alkanes will have the lowest boiling point?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Neopentane (2,2-dimethylpropane, C5H12) has the lowest boiling point among the options due to its highly branched, compact structure. Isopentane (also C5H12) is also branched but less compact. n-Hexane and n-heptane have higher molecular weights.
Hint
Which compound is highly branched and compact?