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 removed by absorption in aqueous Cu2Cl2 Solution.
• B. H2 is removed through occlusion with Pd.
• C. CO is oxidized to CO2 with steam in the presence of a catalyst followed by absorption of CO2 in alkali.
• D. CO and H2 are fractionally separated using differences in their densities.

Answer 1

Answer: (C)

CO is oxidized to CO2 with steam in the presence of a catalyst followed by absorption of CO2 in alkali.

Answer 2

CO + H2O (g) $\xrightarrow [ \text { catalyst } ] { 673 \mathrm {~K} }$ CO2 + H2 ;

CO2 + 2KOH $\longrightarrow$ K2CO3 + H2O