Ethyl propanoate can be prepared by the reaction of ethanoic acid with propanol. b) ethanoic acid with isopropanol. c) ethanoyl chloride with propanol. d) propanoyl chloride with ethanol. e) acetic anhydride with propanol.

Option D

Explanation:

Ester is prepared by esterification reaction between Carboxylic acid and alcohol

And from acid derivatives like acid chloride, anhydride & amide etc.

Here A gives propyl ethanoate by Esterification

B gives isopropyl ethanoate by Esterification

C gives propyl ethanoate by Acylation of alcohol

D gives ethyl propanoate by Acylation of Alcohol

E gives like C.