Question

The IUPAC name of the following compound is:

$C_2{H}_5-\underset{C{H}_2}{\underset{||}{C}}-\underset{C{H}_3}{\underset{|}{C}H}-C{H}_3$

• A. 3-methyl-2-ethylbut-1-yne
• B. 2-ethyl-3-methylbut-1-ene
• C. 3-ethyl-3-methylbutene
• D. ethylisopropylethane

Answer 1

The correct option is B 2-ethyl-3-methylbut-1-ene

$C_2{H}_5-\underset{{}^{1}C{H}_2}{\underset{||}{{}^{2}C}}-\underset{C{H}_3}{\underset{|}{{}^{3}C}H}{-}^{4}C{H}_3$

Hence, IUPAC name is 2-ethyl-3-methylbut-1-ene.