Give simple chemical tests to distinguish between the following pairs of compounds.

Benzaldehyde and Acetophenone

Iodoform test – as acetophenone is methyl ketone it will form

CHI₃ during iodoform test, Iodoform is CHI₃ tri iodo methane. It forms only in the case when NaOI is trated with methyl ketone, this is confirmatory test for methyl ketones.