Question

Give simple chemical tests to distinguish between the pairs of compound
Ethanal and propanal

Answer 1

$\text{Ethanal and propanal can be distinguished by iodoform test.}$Ethanal having one methyl group linked to the carbonyl carbon atom responds to this test. But propanal does not have a methyl group linked to the carbonyl carbon atom and thus, it does not respond to this state.