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प्रश्न
Name the hydrocarbon formed when ethanol is heated with conc. H2SO4 at 170°C? What is this reaction known as?
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उत्तर
Ethene (C2H4)is formed when ethanol is heated with concentrated sulphuric acid (H2SO4) at 170oC. This reaction is known as dehydration as it involves the removal of water molecule from ethanol.
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संबंधित प्रश्न
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.
Fill in the following blank with suitable word.
The functional group present in ethanol is ...............
Organic compounds having
functional group are known as
Match the formulae in group A with appropriate names from group B:
Group A: CH3COOH, CH3CHO, CH3OH
Group B: Ethanol, Methanol, Ethanal, Ethanoic acid
What happens when (give chemical equation):
Sodium reacts with ethanol (ethyl alcohol)
Describe one reaction of ethanol.
How would you test for an alcohol?
Explain why, methanol is much more dangerous to drink than ethanol.
State the method of preparation of ethanol by hydrolysis of ethene.
How is ethanol prepared by fermentation?
Identify the functional group of the CH3OH ?
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:
Converting ethanol to ethene requires the use of_________(Concentrated hydrochloric acid, concentrated nitric cid, concentrated sulphuric acid).
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
At room temperature ethanol is _______.
Write the uses of ethanol.
How is ethanoic acid prepared from ethanol? Give the chemical equation.
Look at below figure and answer the following questions.
- What change would you observe in the calcium hydroxide solution taken in tube B?
- Write the reaction involved in test tubes A and B respectively.
- If ethanol is given instead of ethanoic acid, would you expect the same change?
- How can a solution of lime water be prepared in the laboratory?
What is the role of concentrated Sulphuric acid when it is heated with Ethanol at 443 K. Give the reaction involved.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
Give the balanced chemical equation of the following reaction:
Combustion of ethanol.
