Question

Which isomer of C₄H₉Cl will have the lowest boiling point and why?

Answer 1

The isomer of C₄H₉Cl with the lowest boiling point is 2-chloro-2-methylpropane (also known as tert-butyl chloride) because its highly branched, compact structure minimizes the surface area available for intermolecular forces, particularly Van der Waals forces, requiring less energy to separate the molecules during boiling.