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प्रश्न
Explain the following reaction with an example.
Esterification
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
A student takes about 6 ml of distilled water in each of the four test tubes P, Q, R and S. He then dissolves an equal amount of four different salts namely, sodium chloride in 'P', potassium chloride in 'Q', calcium chloride in 'R' and magnesium chloride in 'S'. Next, he then adds 10 drops of soap solution to each test tube and shakes its contents. The test tubes in which scum (insoluble substance) is formed with soap are:
(A) P and Q
(B) Q and R
(C) R and S
(D) Q and S
What are esters ?
Complete the following chemical equations : C2H5OH + Na →
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
Why is the conversion of ethanol into ethanoic acid an oxidation reaction?
What is an oxidising agent?
An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. Give the name and formula of X.
Name the products formed and give appropriate chemical equations for the following:
sodium reacting with ethyl alcohol.
Write the names of three compounds which can be oxidised directly or in stages to produce acetic acid.
Name the functional group present in the following compound:
HCOOH
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
Acetic acid smells like:
(1) a banana
(2) vinegar
(3) an orange
(4) a lemon
What is vinegar and glacial acetic acid?
What is the action of acetic acid with litmus paper?
Write balanced euation for the following :
Ethane is burnt in air.
State how the following conversions can be carried out:
Ethyl chloride to Ethyl alcohol
Write the molecular formula of the given compound.
Ethanoic acid
A student while observing the properties of acetic acid would report that this smells like ______.
Ethanoic acid reacts with the basic salt, sodium carbonate, to form a salt, named ______, water and carbon dioxide gas.
Write the chemical equation for the ethanol to ethanoic acid of an oxidation reaction.
