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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
While studying saponification reaction, a student measures the temperature of the reaction mixture and also finds its nature using blue/red litmus paper. On the basis of his observations the correct conclusion would be
(A) the reaction is exothermic and the reaction mixture is acidic.
(B) the reaction is endothermic and the reaction mixture is acidic.
(C) the reaction is endothermic and the reaction mixture is basic.
(D) the reaction is exothermic and the reaction mixture is basic.
A student puts a drop of reaction mixture of a saponification reaction first a blue litmus paper and then on a red litmus paper. He may observe that:
(a) There is no change in the blue litmus paper and the red litmus paper turns white.
(b) There is no change in the red litmus paper and the blue litmus paper turns red.
(c) There is no change in the blue litmus paper and the red litmus paper turns blue.
(d) No change in colour is observed in both the litmus papers
For preparing soap in the laboratory we require an oil and a base. Which of the following combinations of an oil and a base would be best suited for the preparation of soap?
(a) Castor oil and calcium hydroxide
(b) Turpentine oil and sodium hydroxide
(c) Castor oil and sodium hydroxide
(d) Mustard oil and calcium hydroxide
Write the name and chemical formula of the simplest organic acid.
Give the common names and IUPAC names of the following compounds of CH3COOH.
Name two oxidising agents which can oxidise ethanol to ethanoic acid.
How would you distinguish between ethanol and ethanoic acid by chemical test?
An organic compound X of molecular formula C2H4O2 gives brisk effervescence with sodium hydrogen carbonate. Give the name and formula of X.
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.
The next higher homologue of ethanoic acid is ______.
On adding acetic acid to sodium hydrogen carbonate in a test tube, a student observes
(A) no reaction
(B) a colourless gas with pungent smell
(C) bubbles of a colourless and odourless gas
(D) a strong smell of vinegar
Give the structural formula of Acetic acid.
What type of compound is formed by the reaction between acetic acid and an alcohol?
Give reason for the following :
Ethyne is more reactive than ethane
Give a balanced chemical equation for the following conversion:
Calcium carbide to ethyne.
Write the characteristics of ethanoic acid.
Why is glacial acetic acid called so?
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Write the chemical equation for the ethanol to ethanoic acid of an oxidation reaction.
