Question

When comparing the boiling point of each of the following pairs, which of the following lists the compound with the highest boiling point first, assuming the same carbon chain length?
A) aldehyde, alcohol
B) ketone, carboxylic acid
C) carboxylic acid, alkane
D) alkane, aldehyde
E) ether, carboxylic acid

Answer 1

Answer:

C

Explanation:

Carboxylic acid contains a -COOH group which can interact with water via hydrogen bonding. This hydrogen bonding makes it soluble in water and elevates its boiling point as expected for moderately strong non-covalent interaction.