MCQ
Oxygen has oxidation states of $ +2 $ in the
- A${H_2}{O_2}$
- B$C{O_2}$
- C${H_2}O$
- ✓$O{F_2}$
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$F{e^{2 + }} + 2{e^ - } \to Fe( - 0.44\,V)$
$N{i^{2 + }} + 2{e^ - } \to Ni( - 0.25\,V)$
$S{n^{2 + }} + 2{e^ - } \to Sn( - 0.14V)$
$F{e^{3 + }} + {e^ - } \to F{e^{2 + }}( - 0.77\,V)$
$2NH_3 + 5F_2\,\,\to \,\, N_2F_4 + 6HF$
