Give Reaction for Hydrogenation

Hydrogenation is a chemical reaction that involves the addition of hydrogen ($\text{H}_2$) to an unsaturated compound (like an alkene, alkyne, or aromatic compound) to form a saturated compound. This process typically requires a catalyst, such as palladium (Pd), platinum (Pt), or nickel (Ni).

The general reaction for the hydrogenation of an alkene is:

$$\boxed{\text{R-CH=CH-R'} + \text{H}_2 \xrightarrow{\text{catalyst}} \text{R-CH}_2\text{-CH}_2\text{-R'}}$$

Here, $\text{R}$ and $\text{R'}$ represent alkyl or aryl groups.