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प्रश्न
How would you bring about the following conversions? Name the process and write the reaction involved.
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उत्तर
- When ethanol is heated at 443 K with excess concentrated sulphuric acid, it gives ethene.
\[\ce{C2H5OH \overset{CONC.H2SO4}{->} C2H4 + H2O}\]
This process is known as dehydration because concentrated sulphuric acid is a dehydrating agent which removes water from ethanol. - When propanol is treated with alkaline potassium permanganate or acidified potassium dichromate, it is converted to propanoic acid.
\[\ce{CH3CH2CH2OH \overset{Alkaline KMnO3}{->}CH3CH2COOH}\] - Alkaline KMnO4 or acidified K2Cr2O7 is an oxidising agent which is adding oxygen to propanol. Hence, it is an oxidation reaction.
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संबंधित प्रश्न
Give other two names of ethanol.
Explain the action of phosphorous trichloride with ethanol. Write the balanced chemical equation of the above reaction.
Write the name and structural formula of the compound obtained when ethanol is heated at 443 K with excess of conc. H2SO4. Also write chemical equation for the reaction stating the role of conc. H2SO4 in it.
The compound formed when ethene reacts with Hydrogen is ________. (CH4, C2H6, C3H8)
Draw the structures for the following compounds:
Ethanal
What is meant by denatured alcohol? What is the need to denature alcohol?
Name the gas evolved when ethanol reacts with sodium.
Write names and formulae of hydrocarbons containing a single and a double bond (one example for each). Give one characteristic chemical property of each.
Name the product formed when ethanol reacts with acetic acid. Give an equation. What is the name given to this type of reaction?
In a tabular form, differentiate between ethanol and ethanoic acid under the following heads:
(i) Physical state
(ii) Taste
(iii) NaHCO3 test
(iv) Ester test
Convert ethanol into ethene using a solid dehydrating agent. Give only a balanced equation.
What are the functional groups? Name any two compounds containing functional groups.
Ethanol is soluble in water in all proportions.
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 | → |
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Neutralization of NaOH with ethanoic acid.
Give the balanced chemical equation of the following reaction:
Oxidation of ethanol by acidified potassium dichromate.
