The electrophilic addition of hydrogen bromide to but-1-ene results in two isomeric products - one is a major product and one is a minor product. The first steps of the electrophilic addition mechanism are shown below:
i)
Draw the displayed formula of the secondary carbocation intermediate that forms the major product.
[1]
ii)
Draw the displayed formula of the primary carbocation intermediate that forms the minor product.
A student stated that changing the halogenoalkane for the reaction in part a) to 2-iodo-2-methylpropane, the reaction would be quicker. Is the student correct? Explain your answer.
