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Question

A metal used to recover copper from a solution of CuSO4 is ____________.
  1. Hg
  2. Fe
  3. Na
  4. Ag

A
Fe
B
Hg
C
Na
D
Ag
Solution
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Iron is used to recover copper from copper sulphate.
Fe+CuSO4Cu+FeSO4
Option A.

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