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प्रश्न
How is ethanoic acid obtained from ethanol? Write down the chemical equation of the reaction involved.
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उत्तर
When ethanol (ethyl alcohol) is heated in the presence of alkaline potassium permanganate solution or acidified potassium dichromate solution, it gets oxidised to ethanoic acid. This reaction is known as oxidation reaction.
The chemical equation for the above reaction is:
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संबंधित प्रश्न
Fill in the blanks from the choices given within brackets:
The basicity of acetic acid is-------- (3, 1, 4).
What is the common name of methanoic acid.
What is the common name of methanol?
How would you distinguish experimentally between an alcohol and carboxylic acid on the basis of a chemical property?
What happens when ethanoic acid reacts with sodium hydroxide? Write equation of the reaction involved.
State any two uses of esters.
In an experiment to study the properties of acetic acid a student takes about 2 mL of acetic acid in a dry test tube. He adds about 2 mL of water to it and shakes the test tube well. He is likely to observe that:
(A) the acetic acid dissolves readily in water
(B) the solution becomes light orange
(C) water floats over the surface of acetic acid
(D) acetic acid floats over the surface of water
Which of the following observations is true about dilute solution of acetic acid?
(A) It smells like vinegar and turns red litmus blue
(B) It smells like onion and turns blue litmus red
(C) It smells like orange and turns red litmus blue
(D) It smells like vinegar and turns blue litmus red
On adding NaHCO3 to acetic acid, a gas is evolved which turns lime water milky due to the formation of:
(1) Calcium bicarbonate
(2) Calcium hydroxide
(3) Calcium carbonate
(4) Calcium acetate
How will you carry out the following conversions?
Ethene to acetic acid
State how the following conversions can be carried out:
Ethyl chloride to Ethyl alcohol
Identify the term or substance based on the descriptions given below:
Ice like crystals formed on cooling an organic acid sufficiently.
Assertion (A): Esterification is a process in which a sweet-smelling substance is produced.
Reason (R): When esters react with sodium hydroxide an alcohol and sodium salt of carboxylic acid are obtained.
Distinguish between esterification and saponification reactions with the help of chemical equations for each.
Explain the following reaction with an example.
Saponification
Ethanoic acid turns ______ litmus to ______
Vinegar is a solution of ______.
Ester is formed by the reaction between ______.
What happens when a small piece of sodium is dropped in ethanol? Write the equation for this reaction.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
