7. Substitution Reactions

Explain why the rate of the reaction of 1-bromo-2-butene with ethanol is increased if silver nitrate is added to the reaction mixture.

Which reaction in each of the following pairs takes place more rapidly? (EtOH is ethyl alcohol; Et₂O is diethyl ether.)

a.

b.

c.

Which substitution reaction takes place more rapidly?

d. CH₃CH₂Cl + I⁻ or CH₃CH₂Br + I⁻