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Questions (XIII)
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Sachin Rana
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1. Fe2+ with NaCN or KCN gives Na(or K)4[Fe(CN)6] which, with Fe3+ gives Fe4[Fe(CN)6}3 which is called Ferri-ferrocyanide (or, IUPAC: Ferric Hexacyanoferrate(II)), which is blue in colour. 2. Fe3+ with Na(or K)CN gives [Fe(SCN)]2+ or, Fe(SCN)3 i.e., Ferrous-thiocyanate which gives blood red coloration.
Sir brown ring complex does show charge transfer o_O
Apoorv singh
5 months ago