Chemistry 9701: AN INTRODUCTION TO ORGANIC CHEMISTRY Topical Past Paper Questions

(a) Using a gel buffered at pH 7.6, electrophoresis is performed on a mixture of three amino acids: asparagine, histidine and lysine. Figure 9.1 The isoelectric points of these amino acids are given in Table 9.1. Table 9.1 Describe the direction of movement of each amino acid dur…

(a) Describe the difference in reactivity between ethanol chloride and chlorobenzene with water. Explain your answer. [2] (b) The structure of compound V is shown. V (i) Name all the functional groups in V. [2] (ii) Deduce the number of possible optical isomers for V. [1] (iii) S…

Compound Q can be synthesised from chlorobenzene in seven steps, using the route shown in Fig. 5.1. Fig. 5.1 (a) (i) Write an equation for the formation of the electrophile for step 1. [1] (ii) Complete the mechanism in Fig. 5.2 for step 1, the alkylation of chlorobenzene. Includ…