Subjective Type

Write the formula corresponding to the following IUPAC names. Aluminium tetrachloridoaurate (III)

Solution

In Aluminium tetrachloridoaurate (III), Al is in +3 oxidation state. $$[AuCl_4]$$, oxidation state of Au is +3 and that of Cl is -1. Charge on complex ion = Oxidation number of metal ion + charge on the ligands = $$[+3+(-1*4)]$$ Charge on complex ion = $$-1$$ Therefore complex can be written as $$[AuCl_4]^{-1}$$ $$[AuCl_4]^{-1}$$ three complex anion combine with one Al atom. Hence, Aluminium tetrachloridoaurate (III) can be written as $$Al[AuCl_4]_3$$

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Coordination Compounds

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