Question

Ethylidene dibromide on heating with metallic sodium in ether solution produce

• A. 1-Butene
• B. Ethylene
• C. Ethane
• D. 2-Butene

Answer 1

Answer: (D)

Ethylidene dibromide on heating with metallic sodium produce $2$-Butene.
$\underset{\text{Ethylidene dibromide}}{C{H}_3-\underset{\stackrel{|}{B}r}{\stackrel{\underset{|}{B}r}{C}}-H+4Na}+H-\underset{\stackrel{|}{B}r}{\stackrel{\underset{|}{B}r}{C}}-C{H}_3\underset{\Delta }{\overset{\text{ether}}{\to }}$
$\underset{\text{2 - Butene}}{C{H}_3-CH=CH-C{H}_3}+4NaBr$