Question:medium

Observe the following reactions
I. $\text{CO}(\text{g})+\text{H}_2(\text{g}) \xrightarrow{\text{X}} \text{HCHO}(\text{g})$
II. $\text{CO}(\text{g})+3\text{H}_2(\text{g}) \xrightarrow{\text{Y}} \text{CH}_4(\text{g})+\text{H}_2\text{O}(\text{g})$
The catalysts $\text{X}$ and $\text{Y}$ in the above reactions are respectively

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Catalytic hydrogenation (reduction) reactions of $\text{CO}$ (Syngas) are selectively controlled by the catalyst used: - $\text{Cu}$ or $\text{ZnO}/\text{Cr}_2\text{O}_3$ catalysts favor the formation of methanol/aldehydes. - $\text{Ni}$ or $\text{Ru}$ catalysts favor complete methanation ($\text{CH}_4$).

Updated On: Mar 30, 2026

$\text{Cu}, \text{Cu}$
$\text{Ni}, \text{Ni}$
$\text{Cu}, \text{Ni}$
$\text{Ni}, \text{Cu}$

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The Correct Option is C

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