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

Options

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

Answer

C

Explanation

To increase the production of `H_(2)` from synthesis gas, CO is oxidised to `CO_(2)` by passing it over steam at 673 K in presence of a catalyst.
`CO(g) + H_(2)O(g) underset("Catalyst")overset(637K) to CO_(2)(g) + H_(2)(g)`
Thus, option (c) is correct.