Testing Your Organic Chemistry Knowledge to Reinforce ...

Testing Your Organic Chemistry Knowledge to Reinforce Comprehension and
Understanding using Web-based Multiple Choice Questions
16. Boiling Point 6
Which amine has the highest boiling point?
Andrew Boa and Jason Eames*
Department of Chemistry, University of Hull
a.n.boa@hull.ac.uk; j.eames@hull.ac.uk
a. A
b. B
c. C
*d. D
e. They all contain nitrogen; they must have the same boiling point.
Correct Answer Reply:
Generally, for compounds with the same functional group the higher molecular weight
compounds have a higher boiling point. Within this series, the amines have the same
molecular weight, but the primary amine E can donate two H-bonds and accept one (due
to the lone pair on N).