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प्रश्न
Name the compound formed when ethanol is heated in excess of conc. sulphuric acid at 443 K. Also, write the chemical equation of the reaction stating the role of conc. sulphuric acid in it. What would happen if hydrogen is added to the product of this reaction in the presence of a catalyst such as palladium or nickel?
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उत्तर
The compound that is formed when ethanol is heated in excess of conc. sulphuric acid at 443 K is ethene.
The concentrated sulphuric acid acts as a dehydrating agent in this reaction. It facilitates the removal of a molecule of water from the ethanol molecule.
When hydrogen is added to ethene in the presence of a catalyst such as palladium or nickel, saturation of the compound takes place to form ethane.
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संबंधित प्रश्न
Give the harmful effects of drinking alcohol.
What would be observed on adding a 5% alkaline potassium permanganate solution drop by drop to some warm ethanol in a test-tube? Write the name of the compound formed during the chemical reaction. Also write chemical equation of the reaction which takes place.
What happens when ethanol reacts with ethanoic acid in the presence of a little of concentrated sulphuric acid? Write equation of the reaction involved.
What happens when ethanol is oxidised with alkaline potassium permanganate (or acidified potassium dichromate)? Write the equation of the reaction involved.
How is ethanol prepared by fermentation?
How is the absolute alcohol obtained?
What would you see, when ethyne is bubbled through a solution of bromine in carbon tetrachloride?
How will you carry out the following conversions:
(i) Ethanol to ethene
(ii) Bromoethane to ethanol
State how the following conversion can be carried out:
Ethene to ethyl alcohol
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
