5026

Compare the acidity of each pair of compounds shown below, identify the more strongly acidic of the two, and give the reasons for your choice.

(a)

(b)

5148

In each case shown below, decide which molecule is more acidic and briefly explain your choice.

(a)

(b) CH₃CH₂CO₂H or CH₃CCl₂CO₂H

(c)

5210

Which is a stronger base, cyclopentadienyl lithium or 1,3-cyclohexadienyl lithium? Why? Show structures to support your answers.