Give equations for the reduction of :

(a) Iron (II) oxide

(b) Iron (III) oxide

(c) Lead (II) oxide

(d) Zinc oxide

(a) Reduction of Iron (II) oxide

$\text{FeO} + \text{C} \xrightarrow{\Delta} \text{Fe} + \text{CO}$

$\text{FeO} + \text{CO} \xrightarrow{\Delta} \text{Fe} + \text{CO}_2$

${\text{FeO}} + \text{H}$2 \xrightarrow{\Delta} {\text{Fe}} + \text{H}{2}\text{{O}}

(b) Reduction of Iron (III) oxide

$\text{Fe}$2\text{O}3 + 2\text{Al} \rightarrow \text{2Fe} + \text{Al}2\text{O}3 + \text{heat}

(c) Reduction of Lead (II) oxide

$\text{PbO} + \text{C} \xrightarrow{\Delta} \text{Pb} + \text{CO}$

$\text{PbO} + \text{CO} \xrightarrow{\Delta} \text{Pb} + \text{CO}_2$

$\underset{\text{yellow}}{\text{PbO}} + \text{H}$2 \xrightarrow{\Delta} \underset{\text{greenish white}}{\text{Pb}} + \text{H}{2}\text{{O}}

(d) Reduction of Zinc oxide

$\text{ZnO} + \text{C} \xrightarrow{1400\degree \text{C}} \text{Zn} + \text{CO}$