Identify catalyst used in following reaction. $\mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_2…

Identify catalyst used in following reaction. $\mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_2 \mathrm{O}_{(\mathrm{g})} \xrightarrow{623 \mathrm{~K}} \mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_{2(\mathrm{~g})}$
  1. Iron chromate
  2. Vanadium pentoxide
  3. Ni metal
  4. Traces of acid or alkali

Solution

Water-Gas Shift Reaction: $\mathrm{CO}_{(\mathrm{g})}+\mathrm{H}_2\mathrm{O}_{(\mathrm{g})} \xrightarrow{623 \mathrm{~K}} \mathrm{CO}_{2(\mathrm{~g})}+\mathrm{H}_{2(\mathrm{~g})}$

The reaction at 623 K represents the high-temperature water-gas shift process, which employs iron oxide-chromium oxide catalysts (iron chromate) to enhance hydrogen production and reduce carbon monoxide.

Among the options, vanadium pentoxide catalyzes sulfuric acid production, nickel metal facilitates hydrogenation and reforming, and acid/alkali traces serve other catalytic purposes. Iron chromate remains the standard catalyst for this specific industrial process.

Final answer: $\boxed{\text{A}}$

Asked in: MHT CET 2025 (05 May Shift 2)

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