Moderate

The hydrogenation of benzene is an example of an:

Correct answer: A. Addition reaction

  • A. Addition reaction
  • B. Substitution reaction
  • C. Elimination reaction
  • D. Polymerization

Explanation

In this reaction, hydrogen atoms are added across the double bonds of the benzene ring, breaking the pi bonds to form a saturated cyclohexane ring. This process, where atoms are added to an unsaturated molecule, is an addition reaction.

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About Chemistry of Hydrocarbons

Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.

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