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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
The usual disease caused by the excessive drinking of alcohol over a long period of time is:
(a) diabetes
(b) cataract
(c) cirrhosis
(d) arthritis
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How is ethane prepared by Wurtz reaction?
Write the balanced equations to convert:
(a) Ethanol to ethene
(b) Ethene to ethanol
[Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol]
From the above, name the compound with \[\ce{-COOH}\] as part of its structure.
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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.
