Question

A compound X(having vinegar like smell) when treated with ethanol in the presence of the acid Z, gives a compound Y which has a fruity smell. The reaction is:C2
H5OH+X →z Y+H 2 O
(i) Identify Y and Z
(ii) Write the structural formula of X.
(iii) Name the reaction.

Answer 1

(i) Compound with vinegar like smell is acetic acid (X) which in the presence of few drops of sulphuric acid (Z) reacts with ethanol and gives an ester as:

C2H5OH+CH3COOH(X)→(Z)H2SO4CH3COOC2H5(Y)+H2O

(ii)Structure of X is:

H−H∣C∣H−OH∣C∣∣O

(iii) Reaction is esterification of acid.

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