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Question
Assertion (A): Among isomeric pentanes, 2, 2-dimethylpentane has highest boiling point.
Reason (R): Branching does not affect the boiling point.
Options
Both A and R are correct and R is the correct explanation of A.
Both A and R are correct but R is not the correct explanation of A.
Both A and R are not correct.
A is not correct but R is correct.
Solution
Both A and R are not correct.
Explanation:
The boiling decreases with branching due to the decrease in surface area, which leads to a decrease in van der Waals force.
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