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
