Q. In context with the industrial preparation of hydrogen from water gas $\left( CO + H_{2} \right)\$which of the following is the correct statement.
A) CO and $H_{2}$ are fractionally separated using differences in their densities
B) CO is removed by absorption in aqueous $Cu_{2}Cl_{2}$ solution
C) $H_{2}$ is removed through occlusion with Pd
D) CO is oxidised to $CO_{2}$ with steam in the presence of a catalyst followed by absorption of $CO_{2}$ in alkali
Explanation
(d)
CO is oxidised to $CO_{2}$ with steam in the presence of a catalyst followed by absorption of $CO_{2}$ in alkali.
$\ \ \ \ \ \ \ \ \ CO + H_{2} + H_{2}O\ \ \underset{\ \ \ \ \ catalyst\ \ \ \ \ }{\overset{\ \ \ \ Steam\ \ \ \ \ \ }{\rightarrow}}CO_{2} + 2H_{2}$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \downarrow \ \ KOH\ \$
$\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ K_{2}{CO}_{3}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.