(a) (i) A compound 'A' with a molecular formula of C 2 H 4 O 2 reacts with a base to give salt and water.…
(a) (i) A compound 'A' with a molecular formula of C2H4O2 reacts with a base to give salt and water. Identify 'A', state its nature and the name of the functional group it possesses. Write chemical equation for the reaction involved.
(ii) When the above stated compound 'A' reacts with another compound 'B' having molecular formula C2H6O in the presence of an acid, a sweet smelling compound 'C' is formed.
(1) Identify 'B' and 'C'.
(2) State the role of acid in this reaction.
(3) Write chemical equation for the reaction involved.
Solution
(a) (i) A = CH3COOH / (Ethanoic acid) / Acetic acid
Nature = acidic
Functional group = – COOH / (carboxylic acid)
CH3COOH + NaOH → CH3COONa + H2O
(ii) (1) B – Ethanol / Ethyl alcohol / C2H5OH
C – Ester / Ethyl ethanoate / Ethyl acetate
(2) Acid acts as a Catalyst in this reaction
(3) CH3COOH + C2H5OH $\xrightarrow{\text{acid}}$ CH3COOC2H5 + H2O