(a)[2]
Explain what is meant by the term nucleophile and identify the species that functions as the nucleophile in this reaction.
(b(i))[1]
Name the type of stereoisomerism displayed by $\text{CH}_3\text{CH(OH)CN}$.
(b(ii))[3]
Draw three-dimensional diagrams for this pair of stereoisomers. Show the chiral centre on one of the structures drawn with an asterisk ($*$).
(c)[1]
Give the structure of the organic product formed when $\text{CH}_3\text{CH(OH)CN}$ reacts with dilute sulfuric acid.