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9.27 Discuss briefly giving an example in each case the role of coordination compounds in:
(iv) extraction/metallurgy of metals
Answers (1)
In the metal extraction process of metals, like silver and gold, make use of complex formation. For example, gold combines with cyanide in the presence of oxygen and water to form the coordination entity [Au(CN)2 ] in aqueous solution which can be further separated by addition of zinc.
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