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प्रश्न
What happens when ethanol is heated at 443K in the presence of conc. H2SO4? Write the role of conc. H2SO4 in this case.
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उत्तर
Reaction to give unsaturated hydrocarbon: Heating ethanol at 443 K with excess concentrated sulphuric acid results in the dehydration of ethanol to give ethene –
\[\ce{CH3-CH2OH ->[Hot Conc{.}][443K H2SO4]CH2 = CH2 + H2O}\]
The concentrated sulphuric acid can be regarded as a dehydrating agent which removes water from ethanol.
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संबंधित प्रश्न
The catalyst used in the contact process is
(A) Copper
(B) Iron
(C) Vanadium pentoxide
(D) Manganese dioxide
Name the following:
Oxidising agent used to convert ethanol to acetic acid.
Convert ethanol into ethene using hot conc. H2SO4. Give only a balanced equation.
State how the following conversion can be carried out:
Ethene to ethyl alcohol
Complete the following activity.
| Boiling point of ethanol | → | |
| General name of ethanol | → | |
| Use of ethanol | → | |
| Boiling point of ethanoic acid | → | |
| Melting point of pure ethanoic acid | → |
How is ethanoic acid prepared from ethanol? Give the chemical equation.
What is the role of concentrated Sulphuric acid when it is heated with Ethanol at 443 K. Give the reaction involved.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
Give the balance chemical equation of the following reaction:
Combustion of ethanol.
