Question

Mention catalyst in the following reaction:

$C_2{H}_4\to C{H}_{3}CHO$

• A. $Mn{O}_2$
• B. $FeC{l}_3$
• C. $PdC{l}_2$
• D. $ZnO/CuO$

Answer 1

The correct option is C $PdC{l}_2$

The catalyst used for the conversion $C_2{H}_4\to C{H}_{3}CHO$ is $PdC{l}_2$.

The given reaction is called Wacker's process. It is used to prepare aldehyde by hydrolysis of alkene in the presence of $PdC{l}_2$. The reaction can be given as follow:

$H_{2}C=C{H}_2+PdC{l}_2+H_{2}O\to C{H}_{3}CHO+2HCl+P{d}^{2+}$

For the above reaction, the catalyst is a two-component system consisting of $PdC{l}_2$ and $CuC{l}_2$.

Option (C) is correct.