Question

Which catalyst is used in the Bosch process when water gas is mixed with excess steam?

• A. $C{r}_2{O}_3$
• B. $F{e}_2{O}_3$
• C. $K_{2}O$
• D. $CuO$

Answer 1

The correct option is B $F{e}_2{O}_3$

$F{e}_2{O}_3$ is used as a catalyst when water gas is mixed with excess steam to obtain carbon dioxide and hydrogen.
$CO$ + $H_2+H_{2}O$ $\stackrel{F{e}_2{O}_3}{⟶}$ $C{O}_2+2H_2$
This is the second step of Bosch process, where water gas when treated with water gives hydrogen gas and carbon dioxide.