NEET levelSingle correct optionDifficulty 1 of 3nm061
The IUPAC name of CHX3−CO−CHX2−CHO is:
A1-formylpropan-2-one
Bbutane-1,3-dione
C2-oxobutanal
D3-oxobutanal
Answer: D
The aldehyde is senior to the ketone, so the CHO carbon is C-1 and the chain has four carbons. The ketone carbon is C-3 and is cited as oxo. The name is 3-oxobutanal.