Question

write the systematic name of each organic molecule: structure

Explanation:

Step1: Identify the longest carbon - chain

The longest carbon - chain has 4 carbon atoms, so the parent name is butane.

Step2: Locate the functional groups

There is an aldehyde group ($-CHO$) at the end of the chain, which makes it a butanal. Also, there is a hydroxyl group ($-OH$) at the second carbon atom.

Step3: Write the name

The systematic name is 2 - hydroxybutanal.

Answer:

2 - hydroxybutanal