Compounds J and K are found in plant oils. [Figure 4.1]

1. (a)(i)Complete Table 4.1 to state what you would observe when J reacts with the reagents listed. Table 4.1 reagent observation with J 2,4-dinitrophenylhydrazine (2,4-DNPH) Tollens' reagent sodium metal[3]
2. (a)(ii)J has two optical isomers. Draw the three-dimensional structures of the two optical isomers of J.[2]
3. (b)(i)K is used to make the addition polymer Perspex®. A synthesis of Perspex® is shown in [Figure 4.2]. Identify L. State the conditions required for reaction 1. L = conditions =[2]
4. (b)(ii)Draw one repeat unit of the addition polymer Perspex®.[2]
5. (b)(iii)Use information from Table 4.2 to suggest how the infrared spectra of M and Perspex® would differ. Explain your answer. [Table 4.2][1]
6. (b)(iv)K can be made from propanone in the three-step synthesis shown in [Figure 4.3]. Complete Table 4.3 to identify the reagent(s) used and the type of reaction in each step. Table 4.3 step reagent(s) type of reaction 1 2 3 Al₂O₃[5]

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