Which of the following alkenes is the most reactive towards the addition of bromine?
Correct answer: B. Ethene
- A. 2-Butene
- B. Ethene
- C. 2-Methyl-2-Butene
- D. Propene
Explanation
The reactivity of alkenes towards electrophilic addition generally decreases as substitution increases. Ethene is the least substituted alkene among the choices, making its double bond more exposed and reactive towards bromine.
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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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