Edexcel Jun 2015 Paper 5 Q24

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24 Benzene can be converted to phenylamine, C6H5NH2, in two steps. Step 1 C6H6 C6H5NO2 Step 2 C6H5NH2 (a) (i) Name the two reagents needed in Step 1. (1)(ii) Suggest why the temperature should not be allowed to go above 55C in Step 1. (1)(iii) Identify the two reagents used to carry out the reduction in Step 2. (1)(b) Some reactions of phenylamine are shown below. Substance A B + Organic Substance C HCl(aq) CH3COCl C6H5NH2 Cu2+(aq) Reagents G and H Substance D C6H5N2 +Cl Substance E C6H5N=NC6H2(CH3)2NH2 Substance F 18 *P45073RA01828*<br /> (i) Give the formula of Substance A. (1)(ii) Draw the displayed formula of the organic Substance C. You need not display the benzene ring. (iii) Substances D and F are both brightly coloured but for different reasons. Classify Substances D and F. (1) (2) Substance DSubstance F(iv) Name Substance E. (1)(v) What two Substances, G and H, are required in the conversion of phenylamine to Substance E? (1)(vi) Suggest the structural formula of the substance which reacts with Substance E to form Substance F. (1) (Total for Question 24 = 10 marks) TOTAL FOR SECTION B = 52 MARKS *P45073RA01928* 19 Turn over<br />

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