Q. 335.0( 10 Votes )

A compound X is formed by the reaction of a carboxylic acid C2H4O2 and an alcohol in presence of a few drops of H2SO4. The alcohol on oxidation with alkaline KMnO4 followed by acidification gives the same carboxylic acid as used in this reaction. Give the names and structures of (a) carboxylic acid, (b) alcohol and (c) the compound X. Also write the reaction.

Answer :

(a) The name of carboxylic acid is ethanoic acid (CH3COOH).


(b) The name of alcohol is ethyl alcohol (C2H5OH).


(c) Compound X is ester (CH3-COOC2H5).



Carboxylic acid with chemical formula (C2H4O2) is Acetic acid (CH3-COOH):
Ethyl alcohol on oxidation forms acetic acid.
C2H5OH + KMnO4
CH3-COOH
Carboxylic acids reacts with alcohols to forms ester.
CH3-COOH + C2H5OH
CH3-COOC2H5 (Ethyl actetate)
Therefore, X = CH3-COOC2H5


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