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प्रश्न
Explain the following reaction with an example.
Esterification
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उत्तर
Substances having ester as the functional group are formed by a reaction between a carboxylic acid and an alcohol. This reaction is known as esterification.
E.g. When ethanoic acid is heated with ethanol in a water bath in the presence of an acid catalyst (concentrated sulphuric acid), ethyl ethanoate and water are formed.
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संबंधित प्रश्न
Ethanoic acid has a .................... odour.
(a) Rotten eggs
(b) Pungent
(c) Vinegar-like
(d) Mild
Complete the following chemical equation:
\[\ce{CH3COOC2H5 + NaOH ->}\]
Identify the term or substance based on the descriptions given below
Ice like crystals formed on cooling an organic acid sufficiently.
Give the common name and IUPAC name of C2H5OH.
What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4?
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
When ethanoic acid reacts with sodium hydrogen carbonate, then a salt X is formed and a gas Y is evolved. Name the salt X and gas. Y Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.
Vinegar is a solution of about:
(a) 5 to 8 per cent ethanoic acid in alcohol
(b) 5 to 8 per cent ethanoic acid in water
(c) 50 to 80 per cent ethanoic acid in water
(d) 50 to 80 per cent ethanoic acid in alcohol
Name the compound formed when acetic acid and ethanol react together.
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid?
If you take a pinch of sodium hydrogen carbonate powder in a test-tube and add drop-by-drop acetic acid to it, what would you observe immediately? List any two main observations.
On adding 2 mL acetic acid to 2 mL of water in a test tube, it was observed that
(A) a clear and transparent solution is formed
(B) a white precipitate is formed almost immediately
(C) two separate layers were formed
(D) a colourless and odourless gas is evolved
Fill in the blank with appropriate word/words.
Esterification is the reaction between carboxylic acid and ______ in presence of ____
Write a balanced chemical equation for the following:
Monochloroethane is hydrolysed with aqueous KOH.
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
Give a chemical reaction in which a catalyst is used.
Ethanoic acid turns ______ litmus to ______
Write the chemical equation for the following:
Esterification Reaction
Write the chemical equation for the ethanol to ethanoic acid of an oxidation reaction.
