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प्रश्न
How would you bring about the following conversions? Name the process and write the reaction involved.
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उत्तर
- When ethanol is heated at 443 K with excess concentrated sulphuric acid, it gives ethene.
\[\ce{C2H5OH \overset{CONC.H2SO4}{->} C2H4 + H2O}\]
This process is known as dehydration because concentrated sulphuric acid is a dehydrating agent which removes water from ethanol. - When propanol is treated with alkaline potassium permanganate or acidified potassium dichromate, it is converted to propanoic acid.
\[\ce{CH3CH2CH2OH \overset{Alkaline KMnO3}{->}CH3CH2COOH}\] - Alkaline KMnO4 or acidified K2Cr2O7 is an oxidising agent which is adding oxygen to propanol. Hence, it is an oxidation reaction.
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संबंधित 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?
How can ethanol and ethanoic acid be differentiated on the basis of their physical properties?
Give the harmful effects of drinking alcohol.
Explain why, methanol is much more dangerous to drink than ethanol.
How would you convert of thanol into ethene?
Name the gas evolved when ethanol reacts with sodium.
What happens when ethanol is heated with concentrated sulphuric acid at 170°C? Write the equation of the reaction which takes place.
State the method of preparation of ethanol by hydrolysis of ethene.
Name the product formed when ethanol reacts with acetic acid. Give an equation. What is the name given to this type of reaction?
How is the spurious alcohol obtained?
Vinegar is prepared by the bacterial oxidation of ______.
Write balanced equations to show the preparation of the following:
Ethene from ethanol
Choose the correct alternative and rewrite the following:
To observe the hydro and clearly, Raju should see it first under the low power lens and then under the high power lens in order to see _____________
Generally _______ is called spirit.
Write the uses of ethanol.
The organic compounds having functional group are known as ______.
What happens when ethanol is heated at 443K in the presence of conc. H2SO4? Write the role of conc. H2SO4 in this case.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
