Question

Give the chemical equation for hydrogenation of ethene.

Answer 1

Hydrogenation is the process where hydrogen atoms bond to the double bond of a compound, facilitating its conversion to a single bond, in the presence of a catalyst. Hydrocarbons with double bonds are classified as unsaturated. Those that only contain single bonds are saturated.

Hydrogenation of ethene.

Ethene reacts with hydrogen in the presence of a finely divided nickel catalyst at a temperature of 150°C ethane formed.

$\underset{\mathrm{Ethene}}{{\mathrm{CH}}_2={\mathrm{CH}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Hyrogen}\mathrm{gas}}{{\mathrm{H}}_2\left(\mathrm{g}\right)}\underset{150°\mathrm{C}}{\overset{\mathrm{Ni}\mathrm{catalyst}}{\to }}\underset{\mathrm{Ethane}}{{\mathrm{CH}}_3-{\mathrm{CH}}_3}$