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MCQ
Which of the following is the correct order of reactivity for elimination (E2) with 2-bromobutane?
Chemistry
A Tertiary > Secondary > Primary
B Primary > Secondary > Tertiary
C Secondary > Primary > Tertiary
D All equal
Explanation

E2 reactivity increases with alkyl substitution because more substituted alkenes (Zaitsev product) are more stable, and tertiary substrates have more beta-hydrogens.

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