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Q.

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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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 difference in their densities

c

CO is removed by absorption in aqueous Cu2Cl2

d

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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