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प्रश्न
Write the chemical equation for the following:
Esterification Reaction
Write a chemical equation to illustrate the following name reaction:
Esterification reaction
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उत्तर १
Carboxylic acid + Alcohol `->` Ester + Water
For example:
\[\ce{CH3COOH + C2H5OH -> CH3COOC2H5 + H2O}\]
उत्तर २
Esterification reaction is the process of combining an organic acid (RCOOH) with an alcohol (ROH) to form an ester (RCOOR) and water in acidic mediums usually. The general reaction is as follows:
\[\begin{array}{cc}
\ce{O}\phantom{.............................................}\ce{O}\phantom{............................}\\
||\phantom{.............................................}||\phantom{............................}\\
\ce{\underset{Acid}{RC} - OH + \underset{Alcohol}{R'OH} ->[conc. H2SO4][heat] \underset{Ester}{RC - O - R'} + \underset{Water}{HOH}}\\
\end{array}\]
संबंधित प्रश्न
Consider the following comments about saponification reactions:
I. Heat is evolved in these reactions.
II. For quick precipitation of soap, sodium chloride is added to the reaction mixtures.
III. Saponification reactions are a special kind of neutralisation reactions.
IV. Soaps are basic salts of long-chain fatty acids.
The correct comments are
(a) I, II and III
(b) II, III and IV
(c) I, II and IV
(d) Only I and IV
In order to study saponification reaction, we first prepare 20% solution of sodium hydroxide. If we record the temperature of this solution just after adding sodium hydroxide flakes to water and also test its nature using litmus, it may be concluded that the process of making this solution is
(A) exothermic and the solution is alkaline
(B) endothermic and the solution is alkaline
(C) endothermic and the solution is acidic
(D) exothermic and the solution is acidic
How esters are prepared ?
List two uses of esters.
When zinc powder is added to acetic acid ______________
(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom
Describe a test for carboxylic acid.
Give any two uses of ethanoic acid.
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
Give the structural formula of Acetic acid.
How is ethyne prepared in the laboratory?
