First slide

Hydrogen

Question

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

Easy

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.

Solution

$\large \mathop {{C_{(s)}}}\limits_{Coal} + \mathop {{H_2}O}\limits_{steam} \xrightarrow[{\mathop {{{400}^o}C}\limits_{Catalyst} }]{}\mathop {CO + {H_2}}\limits_{water\;gas} \$
"Coal gasification"
The production of H₂ can be increased by reacting "CO" of water gas mixture with stream in presence of FeCrO₄ catalyst.
The CO₂ liberated is absorbed into alakali, by this we can seperate H₂ from watergas mixture.

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