Question

An industrial method of preparation of methanol is:

• A. catalytic reduction of carbon monoxide in presence of $ZnO-C{r}_2{O}_3$
• B. by reacting methane with steam at ${900}^{0}C$ with a nickel catalyst
• C. by reducing formaldehyde with lithium aluminium hydride
• D. by reacting formaldehyde with aqueous sodium hydroxide solution

Answer 1

The correct option is A catalytic reduction of carbon monoxide in presence of $ZnO-C{r}_2{O}_3$

The industrial method of preparation of methanol includes catalytic reduction of carbon monoxide. For this purpose, water gas is used.

Water gas is an equimolar mixture of $CO$ and $H_2$.

A mixture of zinc oxide and chromium oxide $(ZnO-C{r}_2{O}_3)$ converts water gas in methanol $\left(C{H}_{3}OH\right)$.

The temperature of the reaction is 573 K.
$CO+2H_2\stackrel{ZnO-C{r}_2{O}_3}{\to }C{H}_{3}OH$

Option A is correct.