Question

Which of the following has the highest boiling point ?

A) 1-chloropentane
B) 1-chloro-2-methylbutane
C) 2-chloro-3-methylbutane
D) All have equal boiling point

Answer 1

1-chloropentane has the highest boiling point among the options given due to its longer carbon chain and the presence of a chlorine atom.

Step-by-step explanation:

The compound with the highest boiling point among the options given is 1-chloropentane (Choice A). Boiling point depends on the strength of intermolecular forces, which are influenced by molecular mass and polarity.

In this case, 1-chloropentane has the longest carbon chain and a chlorine atom, which increases the molecular mass and polarity, resulting in stronger intermolecular forces and a higher boiling point.