Advertisements
Advertisements
प्रश्न
With a labelled diagram describe in brief an activity to show the formation of ester.
Advertisements
उत्तर
The activity given below shows the formation of ester :
- Take 1 mL ethanol (absolute alcohol) and 1 mL glacial acetic acid along with a few drops of concentrated sulphuric acid in a test tube.
- Warm in a water-bath for at least five minutes as shown in the figure below.
- Pour into a beaker containing 20-50 mL of water.
- After some time, there will be the formation of a fruity smell compound. The compound formed is an ester.
The formation of the ester can be represented by the chemical reaction as:
\[\ce{\underset{\text{(Ethanoic acid)}}{CH3COOH} + \underset{\text{(Ethanol)}}{C2H5OH}->[conc. H2SO4] \underset{\text{(Ester)}}{CH3COOC2H5} + H2O}\]
APPEARS IN
संबंधित प्रश्न
Give the common names and IUPAC names of the following compounds of CH3COOH.
Esters are sweet-smelling substances and are used in making perfumes. Describe an activity for the preparation of an ester with the help of a well labelled diagram. Write an equation for the chemical reaction involved in the formation of the ester. Also write the names of all the substances involved in the process of esterification.
Name the product formed and give an appropriate chemical equation for the following:
Ethanol oxidised by acidified potassium dichromate.
What do you notice when acetic acid reacts with alcohol?
Name the functional group present in the following compound:
HCOOH
Why is pure acetic acid also known as glacial acetic acid?
When acetaldehyde is oxidized with acidified potassium dichromate, it forms ______.
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
Which of the following represents saponification reaction?
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
