STANDARDChemistry-Haloalkanes and Haloarenes
STANDARD Chemistry Elimination Reactions MCQ Question
Type: MCQ-conceptual-Medium-Class 12
2-Bromopentane is treated with alcoholic KOH solution. What will be the major product formed in this reaction and what is the type of elimination called?
A
Pent-1-ene, β-Elimination
B
Pent-2-ene, β-Elimination
C
Pent-1-ene, Nucleophilic substitution
D
Pent-2-ene, Nucleophilic substitution.
Correct Answer
Option B
Detailed Explanation
2-Bromopentane undergoes dehydrohalogenation with alcoholic KOH to form pent-2-ene. This is an example of β-elimination where the hydrogen atom is removed from the β-carbon.
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