Which of the following oxides is not reduced | vedclass

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(D) The correct option is $D$.
Carbon reduction is suitable for metals with moderate electropositivity.
$MgO$ (Magnesium oxide) has a very high nega

Vedclass · Accepted Answer

$MgO$

Vedclass · Answer

(D) The correct option is $D$.
Carbon reduction is suitable for metals with moderate electropositivity.
$MgO$ (Magnesium oxide) has a very high negative Gibbs free energy of formation $(\Delta G_f^{\circ})$,meaning it is highly stable.
Carbon cannot reduce $MgO$ to $Mg$ at commercially feasible temperatures because the required temperature is extremely high,making electrolytic reduction the preferred method for $Mg$.
In contrast,$PbO$,$SnO_2$,and $ZnO$ are easily reduced by carbon.

Which of the following oxides is not reduced by carbon reduction for its commercial extraction?

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