Which of the following chemical substances would you expect to have the highest boiling point (you may consider molecular mass and the degree of intermolecular hydrogen bonding as primary controlling factors)?

Question

Quizplus · Accepted Answer

Ethyl alcohol (CHOHCH) has the highest boiling point because it has the highest molecular mass and is capable of intermolecular hydrogen bonding between its hydroxyl (-OH) groups. Ammonia can also form intermolecular hydrogen bonds, but it has a lower molecular mass than ethyl alcohol. Methane cannot form hydrogen bonds and has the lowest molecular mass of the options given. Methyl alcohol has a lower boiling point than ethyl alcohol because it has a lower molecular mass and only one hydroxyl group for hydrogen bonding.

Which of the Following Chemical Substances Would You Expect to Have