Question

Give reasons why 3- bromo -3- ethyl heptane give no reaction with potassium but bromo-propane

Answer 1

3-bromo-3ethyl heptane it is a tertiary bromo derivative, forms a cation and therefore, in reaction with potassium hydroxide, forms, cleavage product

reaction mechanism is S_N1 , E1.

bromo-propane in reaction with potassium hydroxide gives alcohol propanol

reaction mechanism S_N2, Е2