State the relative acidities of bromoethanoic acid, BrCH2COOH, chloroethanoic acid, ClCH2COOH, ethanoic acid, CH3COOH and ethanol, CH3CH2OH. Explain your answer. most acidic __________________________________ least acidic __________________________________ [4]

1. (a)State the relative acidities of bromoethanoic acid, BrCH2COOH, chloroethanoic acid, ClCH2COOH, ethanoic acid, CH3COOH and ethanol, CH3CH2OH. Explain your answer. most acidic __________________________________ least acidic __________________________________ [4][4]
2. (b)Fig. 7.1 shows the reaction of methylbenzene and ethanedioic acid with KMnO4. Predict the major carbon-containing product for each of these reactions. [Figure 7.1] [2][2]
3. (c)(i)Polyamide X can be synthesised from ethanedioic acid and benzene-1,4-diamine. [Structure of benzene-1,4-diamine] Draw the repeat unit of polyamide X in the box. The new functional group formed should be shown displayed. [Box for polyamide X] [2][2]
4. (c)(ii)Benzene-1,4-diamine can be formed by reduction of 1,4-dinitrobenzene. Complete the equation for this reduction. [H] represents one atom of hydrogen from a reducing agent. [Equation to complete] [1][1]
5. (d)(i)Fig. 7.2 shows the two-step synthesis of the azo compound W. [Figure 7.2] Suggest structures for compounds V and W and draw them in the boxes in Fig. 7.2.[2]
6. (d)(ii)Give the reagents and conditions for step 1.[1]

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