Question

Which of the following statement(s) is/are incorrect?

• A. Solubility of ethers in water is comparitively higher than that of their isomeric alcohols
• B. Boiling point of alcohols increases with increase in molecular mass
• C. The higher boiling points of alcohols compared to ethers are due to hydrogen bonding
• D. Boiling point of 1,2-dihydroxybenzene is greater than that of 1,4-dihydroxybenzene

Answer 1

Answer: (A), (D)

The correct options are
A Solubility of ethers in water is comparitively higher than that of their isomeric alcohols
D Boiling point of 1,2-dihydroxybenzene is greater than that of 1,4-dihydroxybenzene

Alcohols are more soluble in water than ethers due to the presence of the hydroxyl group, which effectively participate in hydrogen bonding with water molecules. Also, the hydrogen bonding is the main reason for higher boiling point of alcohols.
The boiling point of 1,4-dihydroxybenzene is higher than that of 1,2-dihydroxybenzene, because the former has intermolecular hydrogen bonding while the latter is having intramolecular hydrogen bonding.