Answer
The answer is attached below.
Work Step by Step
1. The base name ‘octane’ implies that the longest carbon chain has 8 carbon atoms.
2. '2,3-dimethyl' suggests that the carbon number 2 and 3 will have a methyl group (CH3) attached to it,
3. '4-ethyl' suggests that the carbon number 4 will have an ethyl group (CH2CH3) attached to it.
In the answer attached, numbering is done from the right-hand side.
