MCQ
Copper from copper sulphate solution can be displaced by .............. The standard reduction potentials of some electrodes are given below

$E^o (Fe^{+2}, Fe) = -0.44$ $ V$

$E^o (Zn^{+2}, Zn) = -0.76$ $ V$

$E^o (Cu^{+2}, Cu) = +0.34$ $V$

$E^o (Cr^{+2}, Cr) = -0.74$  $V$

$E^o (H^+, 1/2H_2) = -0.00$ $V$

  • A
    $Zn$
  • B
    $Cr$
  • C
    $Fe$
  • All of these

Answer

Correct option: D.
All of these
d

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