Question

During water-gas shift reaction

• A. carbon is oxidized to carbon monoxide
• B. carbon monoxide is oxidized to carbon dioxide.
• C. carbon dioxide is reduced to carbon monoxide
• D. water is evaporated in presence of catalyst.

Hint:

The water-gas shift reaction is a key industrial process for hydrogen production. It converts CO and H₂O into CO₂ and H₂

Answer 1

The Correct Option is B

The water-gas shift reaction is:

\[ CO + H_2O \rightarrow CO_2 + H_2 \]

Key Points:

• Oxidation: Carbon monoxide (\( CO \)) is oxidized to carbon dioxide (\( CO_2 \)).
• Reduction: Water (\( H_2O \)) is reduced to produce hydrogen gas (\( H_2 \)).
• Catalyst: The reaction typically occurs in the presence of a catalyst such as iron oxide (\( Fe_3O_4 \)) with chromium oxide as a promoter.

Applications:

• Widely used in hydrogen production for fuel cells and ammonia synthesis.
• Helps remove carbon monoxide from industrial gas streams.