Basic Organic Organic Oxygen

The IUPAC name of CH3COCH(CH3)2 is

  1. isopropylmethyl ketone
  2. 4-­methylisopropyl ketone
  3. 2-­methyl­-3-­butanone
  4. 3-­methyl-­2-­butanone


The longest carbon chain has 4 carbon atoms. So, the root word is but.

Parent compound has ketonic functional group at second position. A methyl group is present at the third methyl group.

IUPAC name is 3-­methyl-­2-­butanone

The correct option is D.