Among the isomeric pentanes (), which isomer exhibits the lowest boiling point, and what is its physical state at 298 K?

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Question

Among the isomeric pentanes ($C_5H_{12}$), which isomer exhibits the lowest boiling point, and what is its physical state at 298 K?

Prashant Kotian · Accepted Answer

Correct answer: C. Neopentane (2,2-dimethylpropane) is highly branched and roughly spherical, minimizing surface area and van der Waals forces. It has the lowest boiling point () and is a gas at room temp.

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