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CHM 102 Practice Questions Objective Question
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Question

Consider the three isomeric alkanes n-hexane, 2,3-dimethylbutane, and 2-methylpentane. Which of the following correctly lists these compounds in order of increasing boiling point?
Options
A 2,3-dimethylbutane < 2-methylpentane < n-hexane
Correct Answer
B 2-methylpentane < n-hexane < 2,3-dimethylbutane
C 2-methylpentane < 2,3-dimethylbutane < n-hexane
D n-hexane < 2-methylpentane < 2,3-dimethylbutane
Correct Answer

Option A is the correct answer.

Detailed Explanation

Boiling point decreases with increased branching. n-Hexane has the least branching (highest BP), 2-methylpentane has moderate branching, and 2,3-dimethylbutane has the most branching (lowest BP).

Hint

How does branching affect boiling point?

Question Info

Course: CHM 102
Topic: Practice Questions
Type: Objective
Difficulty: Not specified
Question 1075 of 1999
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