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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
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?
The catalyst used in the contact process is
(A) Copper
(B) Iron
(C) Vanadium pentoxide
(D) Manganese dioxide
Fill in the following blank with suitable word:
The next higher homologue of ethane is ...............
Identify the functional group of the CH3OH ?
Give two uses each of:
(i) Methane (ii) ethane
Give three uses of ethanol
Name an organic compound which is dehydrated to produce ethene.
Answer the following question.
Write the chemical formula and name of the compound which is the active ingredient of all alcoholic drinks. List its two uses.
Write the chemical equation and name of the product formed when this compound reacts with -
(i) Sodium metal
(ii) hot concentrated sulphuric acid
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
