Question

Name the following compound: CH3 – CH2 – CH = CH – CH3
2-Pentane
2-pentyne
2-pentene
2-pentyl

Answer 1

It is 2-pentene...... As it has double bond

Answer 2

Answer:

• The name of the following chemical compound $\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{CH}=\mathrm{CH}-\mathrm{CH}_{3}$ is 2-pentene.

• The given compound has five carbon atoms and double bond is placed in between the second and the third carbon.

• According to the IUPAC nomenclature if the compound has five carbon they can be named as “Pent”. If the compound has double bond they can be named as ene” at the suffix.

• Therefore, the name of given compound is – 2-pentene.