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For which of the following metals, hydrometal lagrical exceractive method may be emploved

$ (a)\;\text{Copper} \\(b)\;\text{iron} \\(c)\;\text{chromium} \\ (d)\;\text{tin} $

1 Answer

Copper is the corrcet answer.
Hence a is the correct answer.
answered Mar 17, 2014 by meena.p
 
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