Haloalkanes And Haloarenes

(b) Alkyl halides are non-polar or weakly polar and cannot form hydrogen bonds with water → immiscible. (c) t-butyl bromide has lower boiling point than n-butyl bromide.
Solution:
(c)n-butyl bromide is linear → greater surface area → stronger van der Waals forces.
t-butyl bromide is branched → lower boiling point.