Understanding the Tests

* Chromic Acid Test (Jones Test): This test distinguishes between primary and secondary alcohols, and aldehydes. A positive result (color change from orange to green) indicates the presence of a primary or secondary alcohol, or an aldehyde.

* Iodoform Test: This test is specific for methyl ketones (compounds with a CH3-C=O group). A positive result (formation of a yellow precipitate of iodoform, CHI3) indicates the presence of a methyl ketone.

Putting the Clues Together

* Positive Chromic Acid Test: This tells us the unknown compound could be a primary or secondary alcohol or an aldehyde.

* Positive Iodoform Test: This confirms the presence of a methyl ketone.

Possible Structures

The only way a compound can satisfy both tests is if it's a methyl ketone containing a secondary alcohol group attached to the carbon adjacent to the ketone. The simplest example is 2-hydroxy-2-propanone (acetol):

```

OH

|

CH3-C-CH3

||

O

```

Note: There might be other, more complex, structures that fit the criteria. However, acetol is the simplest and most likely candidate given the information provided.