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(a) Distingusihbetweenesterficationand saponificationreactions with the help of chemicalequations for each. (b) Witha labelled digaram describlein brief an acitivityto showthe formation of an ester. |
Answer» Solution :(a) In the esterification reactino an acid reacts with alcohol in the presence of conc. `H_(2)SO_(4)` to form an ester with a leasant or fruity SMELL. For example, `underset("Ethanoic acid")(CH_(3)COOH)+underset("ETHANOL")(C_(2)H_(5)OH)OVERSET(H_(2)SO_(4)(conc.))tounderset("ETHYL ethanoate (ester)")(CH_(3)COOC_(2)H_(5))+H_(2)O` Saponification is quite different from esterification because in this case an ester reacts with an ALKALI (NaOH or KOH) to form salt of acid and alcohol. for example. `underset("Ethyl ethanoate")(CH_(3)COOC_(2)H_(5))+NaOHtounderset("Sod. ethanoate")(CH_(3)COONa)+underset("Ethanol")(C_(2)H_(5)OH)` (b). |
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