Esterification and Saponification
Esterification and Saponification
Esterification and Saponification:
When ethanol (an alcohol) reacts with acetic acid (a carboxylic acid) in the presence of an acid as catalyst a fruity (sweet) smelling liquid called ester is obtained. This reaction is called esterification.
Here, H2SO4 act as dehydrating agent, i.e. it removes water formed, otherwise ester formed will get converted into acid. The ester gets converted back into alcohol and sodium salt of acid when treated with alkali like sodium hydroxide. This reaction is called saponification, as it is used for the preparation of soap.
Reaction with carbonates and hydrogen carbonates: In the reaction of acetic acid with carbonates or hydrogen carbonates, carbon dioxide gas is obtained. It is an example of acid-base reaction.
Uses of Ethanoic Acid:
a) It is used for making vinegar.
When ethanol reacts with acetic acid in the presence of an acid as catalyst a ___________________smelling liquid called ester is obtained. | |||
| Right Option : B | |||
| View Explanation | |||
Which of the following are correct : (a) Ethanoic Acid is used for making vinegar. (b) Ethanoic Acid is widely used as a preservative in pickles. (c) Ethanoic Acid is used for the synthesis of other compounds like esters. | |||
| Right Option : D | |||
| View Explanation | |||
Which of the following are correct : (a) The ester gets converted back into alcohol and sodium salt of acid when treated with alkali like sodium hydroxide. (b) When ethanol reacts with acetic acid in the presence of an acid as catalyst a fruity (sweet) smelling liquid called ester is obtained. (c) When an alcohol reacts with a carboxylic acid in the presence of an acid as catalyst a fruity (sweet) smelling liquid called ester is obtained. | |||
| Right Option : D | |||
| View Explanation | |||
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