What type of reaction converts an alkene into an alkane?
A
Hydrogenation (addition)
B
Elimination
C
Oxidation
D
Substitution
Correct Answer: Option A — Hydrogenation (addition)
Explanation:
Hydrogenation is an addition reaction where hydrogen gas is added across the double bond of an alkene in the presence of a catalyst like nickel, converting it into a saturated alkane.