Which of the following reaction increases, production of dihydrogen from synthesis gas ?

Options

A. `CH_(4(g))+H_(2)O_((g))overset(1270 K)underset(Ni)rarr CO_((g))+3H_(2(g))`
B. `C_((s))+H_(2)O_((g))overset(1270 K)rarr CO_((g))+H_(2(g))`
C. `CO_((g))+H_(2)O_((g))overset(673 K)underset("Catalyst")rarr CO_(2(g))+H_(2(g))`
D. `C_(2)H_(6(g))+2H_(2(g))O overset(1270 K)underset(Ni)rarr 2CO_((g))+5H_(2(g))`

Answer

C

Explanation

The production of dihydrogen can be increased by reacting carbon monoxide of syngas mixtures with steam in the presence of iron chromate as catalyst.
`CO_((g))+H_(2)O_((g))overset(673 K)underset("Catalyst")rarr CO_(2(g))+H_(2(g))`
This is called water-gas shift reaction.