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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.
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
Write the name of the following functional group:
State the method of preparation of ethanol by hydrolysis of ethene.
Write the name and molecular formula of an organic compound having its name suffixed with 'ol' and having two carbon atoms in its molecule. Write balanced chemical equation to indicate what happens when this compound is heated with excess conc. H2SO4 and the name of main product formed. Also state the role of conc. H2SO4 in the reaction.
How is ethane prepared by Wurtz reaction?
How will you bring about following conversions:
(a) Methane to methanol
(b) Ethane to ethanol (acetaldehyde)
(c) Methane to methanoic acid
Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol
From the compounds given above, name
The compound with -OH as apart of its structure.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
An organic compound ‘A’ is widely used as a preservative and has the molecular formula C2H4O2. This compound reacts with ethanol to form a sweet-smelling compound ‘B’.
Write the chemical equation for its reaction with ethanol to form compound ‘B’.
A gas is evolved when ethanol reacts with sodium. Name the gas evolved and also write the balanced chemical equation of the reaction involved.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
