In context with the industrial preparation of hydrogen from water gas (CO + H2) which of the following is the correct statement ?

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

CO and H2 are fractionally separated using difference in their densities

CO is removed by absorption in aqueous Cu2Cl2

H2 is removed through occlusion with Pd

answer is A.

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Detailed Solution

The water gas is mixed with excess of steam and passed 4500C over a heated catalyst Fe2O3 + Cr2O3. CO is mostly oxidised to CO2 and more H2 is set free. CO2 is absorbed in alkali.CO + H2⏟ + H2O →Catalyst CO2 + 2H2 water gas Steam

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