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                    (b)    Draw the structural formula of the organic product formed when dopamine is dissolved
                           in excess aqueous sodium hydroxide.




















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                                                                                                   [2 marks]

                    (c)    A sample of dopamine is first dissolved in dilute hydrochloric acid and then subjected to
                           an electric current.

                            (i)   Draw the structure of the organic species formed on the addition of the acid.










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                                                                                                    [1 mark]

                            (ii)   To which electrode would the species formed be expected to migrate?


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