In context with the industrial preparation of hydrogen from water gas ( CO + H_2 ), which of the following is the correct statement? - Chemistry MCQ AIEEE 2026 | ExamTest.live

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In context with the industrial preparation of hydrogen from water gas (CO + H_{2}), which of the following is the correct statement?

A $and are fractionally separated using differences in their densities$
B $CO is removed by absorption in aqueous Cu_{2} Cl_{2} solution$
C $H_{2} is removed through occlusion with Pd$
D $CO is oxidized to CO_{2} with steam in the presence of a catalyst followed by absorption of CO_{2} in alkali$

Solution & Step-by-step Explanation

In the water-gas shift reaction, water gas is mixed with steam and passed over a catalyst (like iron chromate) at high temperature. CO reacts with steam to form CO_{2} and more H_{2} . CO + H_{2} + H_{2} O \to CO_{2} + 2 H_{2} The CO_{2} is then removed by dissolving it in water under pressure or in an alkaline solution (like KOH), leaving pure hydrogen.

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In context with the industrial preparation of hydrogen from water gas (CO + H_{2}), which of the following is the correct statement?

and are fractionally separated using differences in their densities

CO is removed by absorption in aqueous Cu_{2} Cl_{2} solution

H_{2} is removed through occlusion with Pd

CO is oxidized to CO_{2} with steam in the presence of a catalyst followed by absorption of CO_{2} in alkali

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