Question

question
what is the name of this molecule: ch₃ - ch₂ - ch(ch₃) - ch(ch₃) - ch₃?
select the correct answer below:
3,4 - dimethylheptane
2,3 - dimethylheptane
3,4 - dimethylpentane
2,3 - dimethylpentane

Explanation:

Step1: Identify the longest carbon - chain

The longest continuous carbon - chain has 5 carbon atoms, so the parent name is pentane.

Step2: Locate and name the substituents

There are two methyl ($-CH_3$) groups. One is on the 2nd carbon and the other is on the 3rd carbon of the pentane chain. So the name is 2,3 - dimethylpentane.

Answer:

D. 2,3 - dimethylpentane