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Ethene is formed when ethanol at 443 K is heated with excess of concentrated sulphuric acid. What is the role of sulphuric acid in this reaction? Write the balanced chemical equation of this reaction. - Science

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Ethene is formed when ethanol at 443 K is heated with excess of concentrated sulphuric acid. What is the role of sulphuric acid in this reaction? Write the balanced chemical equation of this reaction. 

संक्षेप में उत्तर
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उत्तर

`underset("(ethanol)")("C"_2"H"_5"OH") overset("Conc". "H"_2"SO"_4)(->) underset("(ethene)")("CH"_2 = "CH"_2) + "H"_2"O"`

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अध्याय 4: Carbon and its Compounds - Short Answer Questions [पृष्ठ ३५]

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एनसीईआरटी एक्झांप्लर Science [English] Class 10
अध्याय 4 Carbon and its Compounds
Short Answer Questions | Q 39. | पृष्ठ ३५

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संबंधित प्रश्न

Write balanced chemical equations for Preparation of ethanol from Ethyl Chloride


Give a balanced equation for the preparation of ethanol from monochloroethane and aq. sodium hydroxide.


Fill in the following blank with suitable word:

The next homologue of C2H5OH is ...............

 


Draw the structures for the following compounds:
Propanal


What is meant by denatured alcohol? What is the need to denature alcohol?


Explain why, methanol is much more dangerous to drink than ethanol.

 

One of the following substances is not added to make denatured alcohol. This is:
(a) methyl alcohol
(b) copper sulphate
(c) chloroform
(d) pyridine


Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:

Which compound is used to sterilise wounds and syringes?

 

What is the effect of ethanol on the human body?


With a labelled diagram describe an activity to show the formation of an ester.


Addition reactions and substitution reactions are types of organic reactions.Which type of reaction is shown by?

 Ethene?


Write a balanced chemical equation for the following:

Ethanol under high pressure and low temperature is treated with acidified potassium dichoromate.


What are the functional groups? Name any two compounds containing functional groups.


Write the characteristics of ethanol.


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  

Which of the following are used as anesthetics?


A gas is evolved when ethanol reacts with sodium. Name the gas evolved and also write the balanced chemical equation of the reaction involved.


Name the compound formed when ethanol is heated at 443 K in the presence of conc. \[\ce{H2SO4}\] and draw its electron dot structure.

State the role of conc. \[\ce{H2SO4}\] in the reaction.


Give the balanced chemical equation of the following reaction: 

Oxidation of ethanol by acidified potassium dichromate.


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