Task: Answer the following question in the spaces below
a) For each of the following reactions draw the mechanism for SN2. 
b) Explain how you can prepare alcohols from halogenalkanes using SN1 and SN2 processes and the reverse.
c) Explain what is meant by the term dehydration. Identify a catalyst which could be used in the acid-catalysed dehydration of ethanol. Write an equation for the reaction which take place. (3)