Question

Give a chemical test to distinguish between

(a) Propanal and Propanol

(b) Alcohol and Phenol

(c) 1 degree amine and 2 degree amine​

Answer 1

Answer:

Propanal and propanone :

Propanal gives silver mirror test with Tollen's reagent. Propanone does not gives this test.

Propanal gives red ppt with Fehlings solution but propanone does not give this test.

Test to distinguish between alcohol and phenols - definition

Litmus test : Phenols turn blue litmus red and alcohols have no effect. ... Ferric chloride test : Phenols give blue, green, and violet color while alcohol give no change in color.

The Hinsberg test, which can distinguish primary, secondary, and tertiary amines, is based upon sulfonamide formation. In the Hinsberg test, an amine is reacted with benzene sulfonyl chloride. ... If the sulfonamide is insoluble in aqueous sodium hydroxide, it is a secondary amine.