MCQ
The element which liberates oxygen gas from water is
- A$P$
- B$Na$
- ✓$F$
- D$I$
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$E^o (Fe^{+2}, Fe) = -0.44$ $ V$
$E^o (Zn^{+2}, Zn) = -0.76$ $ V$
$E^o (Cu^{+2}, Cu) = +0.34$ $V$
$E^o (Cr^{+2}, Cr) = -0.74$ $V$
$E^o (H^+, 1/2H_2) = -0.00$ $V$