Question

Assertion :$2$-Bromobutane on reaction with sodium ethoxide in ethanol gives $1$-butene as a major product. Reason: $1$-Butene is more stable than $2$-butene.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Both Assertion and Reason are incorrect

Answer 1

The correct option is D Both Assertion and Reason are incorrect

$2$-Bromobutane on reaction with sodium ethoxide in ethanol gives $2$-butene as a major product. The alkene formed in greatest amount is the one that corresponds to removal of the hydrogen from the $\beta$-carbon having the fewest hydrogen substituents. As the more substituted alkene will be the more stable, and therefore the more favored.