Answer:
its A
Explanation:
the national archives is open to anyone who visits
Best and easiest way is to download a software called TeamViewer. You then have to give your ID and Password written in TeamViewer to your support professional. He also has to download TeamViewer to help you if you decide to use this solution.
Isopropyl is: CH3 - CH - CH3
|
Heptane is: CH3 - CH2 - CH2 - CH2 - CH2 - CH2 - CH3
Then 2,2 isopropyl heptane is:
CH3 - CH - CH3
|
CH3 - C - CH2 - CH2 - CH2 - CH2 - CH3
|
CH3 - CH - CH3.
There you can count that the longest carbon chain has 8 carbon atoms.
So the right name is of an octane.
I will rearrange the chain to show the 8 carbon chain in a row:
CH3 CH3
| |
CH3 - CH - C - CH2 - CH2 - CH2 - CH2 - CH3
|
CH3 - CH - CH3
Now, you can see that the right name is 3 isopropyl - 2, 3 dimethyl octane