Concept:The industrial synthesis of methanol from syngas/water gas (\(\text{CO} + \text{H}_2\)) requires high temperature, high pressure, and a specific mixed-oxide catalyst to proceed efficiently.
Formula:$$ \text{CO} + 2\text{H}_2 \xrightarrow[400^{\circ}\text{C, 200 atm}]{\text{ZnO/Cr}_2\text{O}_3} \text{CH}_3\text{OH} $$
Solution:- The standard catalytic mixture utilized historically and conceptually in this curriculum is zinc oxide (\(\text{ZnO}\)) promoted by chromium(III) oxide (\(\text{Cr}_2\text{O}_3\)).
Why other options are incorrect:The combinations in A, B, and C lack the specific synergistic interaction of the \(\text{ZnO} - \text{Cr}_2\text{O}_3\) system required to lower the activation energy for this specific carbon monoxide reduction.
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