Hydrocarbons · NEET Preparation Chemistry

Which of the following compounds has the highest boiling point?

Practice question from Hydrocarbons (NEET Preparation Chemistry), with the correct answer and a step-by-step solution.

medium · MCQ · Q-5F9244

Which of the following compounds has the highest boiling point?

  1. A.n-PentaneCorrect answer
  2. B.2-Methylbutane
  3. C.2,2-Dimethylpropane
  4. D.n-Butane

Solution

Straight-chain alkanes have larger surface area compared to branched isomers, resulting in stronger van der Waals forces of attraction and thus higher boiling points. Among the given options, n-pentane is a straight-chain alkane with five carbons, giving it the highest boiling point.

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