Which of the following statements is true regarding the boiling points of aldehy

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Question: Which of the following statements is true regarding the boiling points of aldehydes and ketones? (2023)

Options:

Correct Answer: Ketones have higher boiling points than aldehydes

Exam Year: 2023

Solution:

Ketones generally have higher boiling points than aldehydes due to stronger dipole-dipole interactions.

Which of the following statements is true regarding the boiling points of aldehydes and ketones? (2023)

Which of the following statements is true regarding the boiling points of aldehydes and ketones? (2023)

Step 1: Understand what aldehydes and ketones are. Aldehydes have a carbonyl group (C=O) at the end of the carbon chain, while ketones have a carbonyl group in the middle of the carbon chain.
Step 2: Know that both aldehydes and ketones can form dipole-dipole interactions because of the polar carbonyl group.
Step 3: Recognize that the strength of dipole-dipole interactions affects boiling points. Stronger interactions lead to higher boiling points.
Step 4: Compare the structure of aldehydes and ketones. Ketones have more alkyl groups around the carbonyl group, which can stabilize the molecule and enhance dipole-dipole interactions.
Step 5: Conclude that because ketones have stronger dipole-dipole interactions than aldehydes, they generally have higher boiling points.

No concepts available.