Chemistryhard · Past Paper
Which isomer of C4H10 has the lowest boiling point?
An-butane
BIsobutane
CCyclobutane
DThey have the same boiling point
✓ Correct Answer: B — Isobutane
Isobutane (2-methylpropane) is more branched and spherical, resulting in weaker London forces compared to the linear n-butane.
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