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प्रश्न
When ethanol reacts with ethanoic acid in the presence of conc. H2SO4, a substance with fruity smell is produced. Answer the following:-
(i) State the class of compounds to which the fruity smelling compounds belong. Write the chemical equation for the reaction and write the chemical name of the product formed.
(ii) State the role of conc. H2SO4 in the reaction.
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उत्तर
(i). An ester is formed when an alcohol reacts with a carboxylic acid in the presence of an acidic medium. An ester has a fruity smell.
The chemical equation for the reaction between ethanol and ethanoic acid in the presence of conc. H2SO4 can be written as follows:-
(ii). Concentrated sulphuric acid acts as a protonating catalyst during the esterification reaction.
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
Write the IUPAC names, common names and formulae of the first two members of the homologous series of carboxylic acids.
Choose those compounds from the following which can turn blue litmus solution red:
HCHO, CH3COOH, CH3OH, C2H5OH, HCOOH, CH3CHO
Give reasons for your choice.
Consider the following organic compounds:
HCHO, C2H5OH, C2H6, CH3COOH, C2H5CI
Choose two compounds which can react in the presence of conc. H2SO4 to form an ester. Give the name and formula of the ester formed.
The structural formula of an ester is :
Write the formula of the acid and the alcohol from which it is formed.
What do you observe when acetic acid is added to sodium bicarbonate?
Fill in the blank with appropriate word/words.
Esterification is the reaction between carboxylic acid and ______ in presence of ____
State how the following conversions can be carried out:
Ethyl alcohol to Ethane
State are relevant observations for following reactant:
Addition of ethyl alcohol to acetic acid in presence of conc. H2SO4
Name the oxidising agent used in the conversion of ethanol to ethanoic acid.
