Edexcel Jan 2017 (IAL) Paper 4 Q14

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12 The reaction between concentrated nitric acid and concentrated sulfuric acid is The Brnsted-Lowry acids in this equilibrium are HNO3 + H2SO4 (cid:96)(cid:95) H2NO3+ + HSO4 2NO33 B H A HNO 3 and H2SO4+ and HSO4C HNO 3 and HSO4 + and H2SO4 D H 2NO33 (Total for Question 12 = 1 mark) D O N O T W R I T E I N T H I S A R E A 13 When one of the optical isomers of 2-bromobutane reacts with aqueous hydroxide ions by an SN2 mechanism, butan-2-ol is formed. Which of the following is correct? A There are two steps in the reaction. B The butan-2-ol which forms is optically active. C A racemic mixture forms. D A planar intermediate forms. (Total for Question 13 = 1 mark) 14 Ethanamide, CH3CONH2 , is formed in one step by the reaction of A ethanoic acid with ammonia. B ethanoyl chloride with ammonia. C ethanal with hydrogen cyanide. D methanol with methylamine. Use this space for any rough working. Anything you write in this space will gain no credit. (Total for Question 14 = 1 mark) *P48372RA0628* D O N O T W R I T E I N T H I S A R E A D O N O T W R I T E I N T H I S A R E A<br />

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