On the basis of intermolecular forces predict the correct order of decreasing boiling points of the compounds:

Alcohol has the highest boiling point due to H-bonding, and its molar mass is greater than that of ${\mathrm{H}}_2$ as well. A covalent compound's boiling point rises with increasing molar mass. Therefore, methane has a greater boiling point than hydrogen.

${\mathrm{CH}}_3\mathrm{OH}>{\mathrm{CH}}_4>{\mathrm{H}}_2$

   (H-Bond)  (V.W.F)