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CHM 102 Practice Questions Objective Question
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Question

Thiols are alcohol analogs in which the oxygen has been replaced by sulfur (e.g., CH3SH). Given the fact that the S–H bond is less polar than the O–H bond, which of the following statements comparing thiols and alcohols is correct?
Options
A Hydrogen bonding forces are weaker in thiols.
Correct Answer
B Hydrogen bonding forces are stronger in thiols.
C Hydrogen bonding forces would be the same.
D No comparison can be made without additional information.
Correct Answer

Option A is the correct answer.

Detailed Explanation

Since the S-H bond is less polar than O-H, thiols form weaker hydrogen bonds than alcohols. This results in lower boiling points for thiols compared to alcohols of similar molecular weight.

Hint

How does bond polarity affect hydrogen bonding strength?

Question Info

Course: CHM 102
Topic: Practice Questions
Type: Objective
Difficulty: Not specified
Question 1347 of 1999
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