Hydrocarbons Question 326

Question: B.P. of branched chain alkanes as compared to straight chain alkanes are [MP PMT 1987; AIIMS 1999]

Options:

A) Lower

B) Equal

C) Higher

D) Independent of the chain

Show Answer

Answer:

Correct Answer: A

Solution:

As the number of branches increases, surface area decreases, due to which Vander Waal forces of attraction decreases.

Hence, boiling point also decreases.