Haloalkanes 5. Rate of hydrolysis shown & explained.
Frank Scullion
This video both demonstrates and explains the factors that control the rate of hydrolysis of haloalkanes. 1-chlorobutane should be more reactive than 1-iodobutane, on the basis that the C-Cl bond is more polar than the C-I bond - thus attracting the nucleophile better. However, 1-iodobutane would be expected to react faster on the basis that the C-I bond is weaker than the C-Cl bond, thus lowering the activation energy of the reaction. This video identifies which of the two factors has the greater influence on the rate.