Advertisements
Advertisements
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?
Advertisements
उत्तर
The compound that is formed when ethanol is heated in excess of conc. sulphuric acid at 443 K is ethene.
The concentrated sulphuric acid acts as a dehydrating agent in this reaction. It facilitates the removal of a molecule of water from the ethanol molecule.
When hydrogen is added to ethene in the presence of a catalyst such as palladium or nickel, saturation of the compound takes place to form ethane.
APPEARS IN
संबंधित प्रश्न
Write the molecular formula of the 2nd and the 3rd member of the homologous series whose first member is methane.
Fill in the following blank with suitable word.
The functional group present in ethanol is ...............
What is the molecular formula and structure of the alcohol which can be thought to be derived from pentane?
What happens when ethanol is oxidised with alkaline potassium permanganate (or acidified potassium dichromate)? Write the equation of the reaction involved.
One of the following substances is not added to make denatured alcohol. This is:
(a) methyl alcohol
(b) copper sulphate
(c) chloroform
(d) pyridine
Write the balanced equations to convert:
(a) Ethanol to ethene
(b) Ethene to ethanol
Ethanol can be converted to ethene which can be changed to ethane.
Choose the correct word or phrase from the options given below to complete the following sentences:
The conversion of ethanol to ehane is an example of_________(dehydration, dehydrogenation)
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 balance 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.
