Question

In context with the industrial preparation of hydrogen from water gas (CO + H₂), which of the following is the correct statement?
(a) CO is oxidised to CO₂ with steam in the presence of a catalyst followed by absorption of CO₂ in alkali
(b) CO and H₂ are fractionally separated using differences in their densities
(c) CO is removed by absorption in aqueous Cu₂Cl₂ solution
(d) H₂ is removed through occlusion with Pd

Answer 1

(a) : Carbon monoxide is oxidised to carbon dioxide by passing the gases and steam over an iron oxide or cobalt oxide or chromium oxide catalyst at 673K resulting in the production of more H₂.