Question

1. Which of the following compounds would show hydrogen bonding in their pure liquid state?

i.       HF

ii.      H₂O

iii.     CH₃OH

iv.     CH₃NH₂

v.      (CH₃)₂NH

vi.     (CH₃)₃N

vii.    CH₃OCH₂CH₃

2. Which of the following can form hydrogen bonds with methanol?

          i.         HCOOH

          ii.       NaOH

          iii.                   CH₃NO₂

          iv.       F^-

               v.        NH₄Cl

          vi.       benzene

          vii.      CH₄

Answer 1

The answer is:

to form hydrogen bond there has to be one hydrogen (H) covalently bonded to highly electronegative atom such as Oxygen(O), Nitrogen(N), Fluorine(F).

question a:

the hydrogen bonded liquids are:

i, ii, iii, iv, v

question b:

the compounds which can form hydrogen bond with methanol are:

i, iii, iv, v