Question

write the IUPAC name of the following​

Answer 1

1)

C₄H₁₀

butane

2)

C₈H₁₈

octane

3)

C₈H₁₄

octane

Answer 2

Answer:

The IUPAC name of the given compounds are

• CH₃CH(CH₃)CH₃                  -  2-methylpropane.

• CH₃CH₂C(CH₃)(CH₂CH₃)₂  -  3-ethyl-3-methylpentane

• CH₃C(CH₃)₂CH₂CH₂(CH₃)₂  -  2,2,4-trimethylpentane

Explanation:

• CH₃CH(CH₃)CH₃

The parent chain has 3 Carbons and -CH₃ group as a substituent at the C-2 position. Thus the IUPAC name of the compound is 2-methylpropane.

•  CH₃CH₂C(CH₃)(CH₂CH₃)₂

The longest carbon chain has 5 Carbons. It has -CH₃ group and -CH₂CH₃ group as substituents at the C-3 position. Thus the IUPAC name of the compound is 3-ethyl-3-methylpentane

• CH₃C(CH₃)₂CH₂CH₂(CH₃)₂

The longest carbon chain has 5 Carbons. It has 2 -CH₃ groups at the C-2 position and one at the C-3 position. Thus the IUPAC name of the compound is 2,2,4-trimethylpentane