The reaction of an alkene with hydrogen in the presence of catalyst is
- a substitution reaction
- an oxidation reaction
- a nucleophilic reaction
-
an addition reaction
The correct answer is: D
Explanation
When an alkene reacts with hydrogen in the presence of a catalyst, the reaction is called hydrogenation.
Hydrogenation is an addition reaction that occurs when hydrogen gas is added to an alkene's double bond in the presence of a metal catalyst. The reaction results in the formation of an alkane, which is a saturated compound.
The reaction is also known as catalytic hydrogenation because a catalyst is required for it to occur. The catalyst lowers the activation energy of the reactants, which increases the reaction rate.