AQA Jun 2016 Paper 2 Q8

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section b answer all questions in the spaces provided do not write outside the box two reactions of bromopentane ch ch ch chbrch are shown c h reaction ch ch ch chbrch reaction c h oh the c h formed in reaction exists as a mixture of three isomers one of which is pent ene two of the isomers are a pair of stereoisomers all three isomers decolourise bromine a the same reagent is used in both reactions the product is determined by the choice of conditions state the reagent and the conditions for each of reaction and reaction state the role of the reagent in each reaction name and outline the mechanism of reaction for the formation of pent ene marks wmp jun chem do not write outside the box b all three isomers of c h contain the same functional group draw the displayed formula of pent ene draw the structures of the pair of stereoisomers and give their full iupac names explain the origin of the stereoisomerism shown marks turn over wmp jun chem do not write outside the box c the rates of hydrolysis of two chloroalkanes can be investigated by adding aqueous silver nitrate to the chloroalkanes during the hydrolysis reactions chloride ions are liberated slowly precipitates of silver chloride are formed outline a method to compare the rate of hydrolysis of chlorobutane with that of chlorobutane state how the method would ensure a fair test marks wmp jun chem turn over for the next question do not write on this page answer in the spaces provided turn over wmp jun chem

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