The metal used to recover copper from an aqueous solution of copper sulphate is: |
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|||
(a) |
Na |
(b) |
Ag |
|
(c) |
Hg |
(d) |
Fe |
The metal used to recover copper from an aqueous solution of copper sulphate is: |
|
|||
(a) |
Na |
(b) |
Ag |
|
(c) |
Hg |
(d) |
Fe |