# Question #efa5d

$C {H}_{4} < {C}_{5} {H}_{11} O H < C {H}_{3} O H < {H}_{2} O$
Methane, $C {H}_{4}$, has close to non polar bonds but is a nonpolar molecule There is little difference between the electronegativity of Carbon and Hydrogen, plus the molecule has a symmetrical geometry.
Water, ${H}_{2} O$, is the most polar molecule with extensive Hydrogen bonding.