How do you draw the structure of 5-iodo-2-methoxyhexane?

Point out the substituents and longest carbon chain to draw the structure

Explanation:

It is a substituted alkane with longest carbon chain contains 6 carbon atoms ("Hex" denotes 6 carbons and "ane" denotes alkane)

There are two substituents present here- (1) methoxy group at C-2 position and (2) iodo group at C-5 position.

Place these two substituents in main carbon chain to draw 5-iodo-2-methoxyhexane

Skeletal structure of the given compound along with numbering has been shown below

it is b that is the answer.