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प्रश्न
Distinguish between esterification and saponification reactions with the help of chemical equations for each.
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उत्तर
| Esterification | Saponification |
| 1. It is a reaction in which carboxylic acids react with alcohols in the presence of conc. H2SO4 | It is a reaction in which an ester reacts with an alkali. |
| 2. The formation of a fruity smell compound takes place called an ester. | The formation of soap takes place. |
| 3. It needs a catalyst for a reaction to occur. | No catalyst is required for the reaction to take place. |
|
4. The chemical equation involved is: \[\ce{CH3COOH + C2H5OH ->[conc. H2SO4]CH3COOC2H5 + H2O}\] |
The chemical equation involved is: \[\ce{CH3COOC2H5 + NaOH -> CH3COONa + C2H5OH}\] |
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संबंधित प्रश्न
While studying saponification reaction for the preparation of soap, a teacher suggested to a student to add a small quantity of common salt to the reaction mixture. The function of common salt in this reaction is to
(A) reduce the alkalinity of the soap
(B) reduce the acidity of the soap
(C) enhance the cleansing capacity of soap
(D) favour precipitation of soap
How esters are prepared ?
Describe a test for carboxylic acid.
Describe one reaction of a carboxylic acid.
A student takes 2 mL acetic acid in a dry test tube and adds a pinch of sodium hydrogen carbonate to it. He makes the following observations:
I. A colourless and odourless gas evolves with a brisk effervescence.
II. The gas turns lime water milky when passed through it.
III. The gas burns with an explosion when a burning splinter is brought near it.
IV. The gas extinguishes the burning splinter that is brought near it.
The correct observations are:
(A) I, II, and III
(B) II, III and IV
(C) III, IV and I
(D) IV, I and II
Under what conditions does ethane get converted to ethyl alcohol?
How is ethyne prepared in the laboratory?
How will you carry out the following conversions?
Ethene to acetic acid
Using appropriate catalysts, ethane can be oxidized to an alcohol. Name the alcohol formed when ethane is oxidized.
Ethanoic acid reacts with the basic salt, sodium carbonate, to form a salt, named ______, water and carbon dioxide gas.
