Which statement about bromide ions is not correct?
They form a cream precipitate with silver nitrate solution that is insoluble in dilute aqueous ammonia but soluble in concentrated aqueous ammonia.
They form an octahedral cobalt(II) complex when aqueous cobalt(II) ions are reacted with an excess of bromide ions.
They form when bromine reacts with potassium iodide solution.
They have the electron configuration 1s22s22p63s23p63d104s24p61s^2 2s^2 2p^6 3s^2 3p^6 3d^{10} 4s^2 4p^61s22s22p63s23p63d104s24p6.
63 exam-style questions on AQA A Level Chemistry Transition metals (A-level only), covering General properties of transition metals (A-level only), Substitution reactions (A-level only), Shapes of complex ions (A-level only), Formation of coloured ions (A-level only), Variable oxidation states (A-level only), and Catalysts (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.