What is the product when ethanal reacts with excess ethanol in the presence of an acid catalyst?
Ethanal (CH₃CHO) reacts with excess ethanol (C₂H₅OH) under acidic conditions to form an acetal, specifically 1,1-diethoxyethane (CH₃CH(OC₂H₅)₂).
Ref: NCERT Class 12 Chemistry > Chapter 12: Aldehydes, Ketones and Carboxylic Acids > Topic: Nomenclature, Structure and Preparation of Aldehydes and Ketones