Among the following statements, choose the correct statements.

A. Boiling point of alcohols increases with increase in the number of carbon atoms.

B. In alcohols, boiling points increases with increase of branching in carbon chain.

C. Boiling points of alcohols are lesser in comparison to haloalkanes of comparable molecular mass.

D. Boiling points of alcohols are higher in comparison to hydrocarbons of comparable molecular mass.

E. The high boiling points of alcohols are mainly due to the presence of intramolecular hydrogen bonding.

Choose the correct answer from the options given below:

Explanation:-

• The boiling points of alcohols increase with increase in the number of carbon atoms (increase in van der Waals forces). In alcohols, the boiling points decrease with increase of branching in carbon chain (because of decrease in van der Waals forces with decrease in surface area)
• Boiling point of alcohols is more in comparison to hydrocarbons of comparable molecular mass due to intermolecular hydrogen bonding.
•  Boiling point of alcohols are higher in comparison to other classes of compounds, namely hydrocarbons, ether, haloalkanes and haloarenes of comparable molecular masses.

Note : In statement E, we have to consider inter molecular hydrogen bonding instead of intramolecular hydrogen bonding.