Question

multiple choice 2 points
2,3,4,5 - tetramethylheptane
2,2,5,5 - tetramethylheptane
2,2,5,5 - tetramethylhexane
1,1,6,6 - tetramethylhexane

Explanation:

Step1: Identify longest carbon - chain

The longest continuous carbon - chain has 7 carbon atoms, so it is a heptane.

Step2: Locate methyl groups

There are two methyl groups on the 2nd carbon and two methyl groups on the 5th carbon. So the name is 2,2,5,5 - tetramethylheptane.

Answer:

2,2,5,5 - tetramethylheptane