Which of the following compounds can be distinguished from iodoform test?

Acetophenone and benzophenone

The correct answer is option 4. Acetophenone and benzophenone.

Iodoform test involves the reaction of a compound with sodium hypoiodite to detect the presence of CH₃CO or CH₃CH(OH) group. A positive test forms CHI₃ (iodoform) in the form of a yellow precipitate. Acetaldehyde and acetophenone give yellow ppt in this test, whereas formaldehyde, benzophenone and benzaldehyde do not undergo this test due to the absence of CH₃CO group in their structures.

Since Acetophenone gives a positive iodoform test and benzophenone gives negative iodoform so they can be easily distinguished by iodoform test.