Give a chemical test to distinguish between aldehyde and ketone.

Explanation

This is distinguished by using Tollen.s reagent test. Acetaldehyde will reduce tollen reagent to silver, when acetaldehyde is warmed with Tollen.s reagent.
` (i) underset("Acetaldehyde")(CH_3 CHO) + underset("Tollen reagent")( 2[Ag(NH_3)_2]) + 2OH^(-) to underset("Anm . Acetate")(CH_3 COONH_4 ) + underset("silver mirror")(2Ag)`
(ii) Acetone or propanone will not give this test.