Nomenclature of Aldehydes & Ketones

For each of the compounds on the left, give an acceptable IUPAC name.
Click the mouse on the molecule to view the answer;

click on the button to view the correct numbering sequence.

2-pentanone

The numbering sequence is shown below:

1-phenyl-2-propanone

The numbering sequence is shown below; remember that the ketone is the highest priority group and defines the parent chain.

3-methylcyclopentanecarboxaldehyde

The numbering sequence is shown below; remember that an aldehyde group attached directly to a ring is named as a "carbaldehyde".