As we can see here, the structure has at most (and in the longest parent chain) 3 carbon atoms; thus, we obtain the suffix prop.
It is also an alkane group as it only features single bonds, therefore we get ane. So, now we have propane.
However, there is an alcohol present, which prompts the —ol suffix, with the o replacing the last vowel letter "e". Now, we have propanol.
The last step is to identify the order in which you can locate the alcohol in the chain faster. From right to left, you get 1 (where the alcohol is attached to), 2, and 3.
Answers & Comments
1-propanol