NEETChemistry-Organic Chemistry
NEET Chemistry Physical Properties of Alkanes MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Arrange the following in decreasing order of their boiling points.
A. n-butane
B.²⁻methylbutane
C. n-pentane
D. 2,²⁻dimethylpropane
A
A > B > C > D
B
B > C > D > A
C
D > C > B > A
D
C > B > D > A
Correct Answer
Option D
Detailed Explanation
Boiling point increases with molecular weight and decreases with branching. n-pentane has the highest boiling point, followed by²⁻methylbutane, n-butane, and 2,²⁻dimethylpropane.
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