(a) When [CN] is added to aqueous Ni 2+ ions, a green precipitate forms; if excess...
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(a) When [CN]− is added to aqueous Ni2+ ions, a green precipitate forms; if excess KCN is added, the precipitate dissolves to give a yellow solution and at high concentrations of [CN]−, the solution becomes red. Suggest an explanation for these observations.
(b) If the yellow compound from part (a) is isolated and reacted with Na in liquid NH3, a red, air-sensitive, diamagnetic product can be isolated. Suggest its identity.
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a Explanation for the observations with CN and Ni2 ions Green precipitate The formation of a green precipitate suggests the initial formation of a coo...View the full answer
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