Question Detail

CHM 102 Practice Questions Objective Question
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Question

When carboxylic acids and dicarboxylic acids have similar molecular weights, how do their melting points compare?
Options
A Carboxylic acids have greater melting points.
B Dicarboxylic acids have greater melting points.
Correct Answer
C Both acids have similar melting points.
D No consistent trend exists.
Correct Answer

Option B is the correct answer.

Detailed Explanation

Dicarboxylic acids have higher melting points than monocarboxylic acids of similar molecular weight because they can form more extensive hydrogen bonding networks (two -COOH groups) and have more symmetrical structures that pack better in the crystal lattice.

Hint

Which type of acid can form more hydrogen bonds?

Question Info

Course: CHM 102
Topic: Practice Questions
Type: Objective
Difficulty: Not specified
Question 1402 of 1999
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