Which of the following statement(s) is/are correct about the water-gas shift reaction which is used in the commercial preparation of hydrogen gas?

It involves the selective oxidation of

C O

of water gas to

C O_{2}

with the help of steam in the presence of iron chromate as catalyst

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It involves the separation of

C O

and

H_{2}

by solvent extraction method

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It involves the absorption of

C O

in aqueous copper

(I)

chloride solution

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It involves the removal of

H_{2}

through occlusion with

P d

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Solution

The correct option is B It involves the selective oxidation of $C O$ of water gas to $C O_{2}$ with the help of steam in the presence of iron chromate as catalyst
$C O_{(g)} + H_{2 (g)} + H_{2} O_{(g)} F e C r O_{4} - ---- \to 673 K 2 H_{2 (g)} + C O_{2 (g)}$

Water-gas shift reaction involves the selective oxidation of $C O$ of water gas to $C O_{2}$ with the help of steam, in the presence of iron chromate as catalyst.

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