Rank the following isomers in order of increasing boiling point, and explain the reasons for your order of ranking.

For each pair of compounds, predict the one with a higher boiling point. Which compounds have zero dipole moments?

c. cyclohexene or 1,2-dichlorocyclohexene

Rank the boiling points of the following molecules. Explain your ranking ( 1 = highest bp; 3 = lowest bp ).

a. Which compound would you expect to have a greater dipole moment, methyl acetate or butanone?

b. Which would you expect to have a higher boiling point?

Imidazole boils at 257 °C, whereas N-methylimidazole boils at 199 °C. Explain the difference in boiling points.

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(a)

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(d)

In each pair, which would you expect to have the higher melting point?

(b)

Identify the hydrogen bond donors and hydrogen bond acceptors in the following molecules.

(b)