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प्रश्न
What property of conc. H2SO4 is made use of in the following case? Give an equation for the reaction in this case:
It’s reaction with ethanol.
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उत्तर
Concentrated sulphuric acid acts as a dehydrating agent in this reaction.
\[\ce{\underset{Ethanol}{C2H5OH} ->[conc.H2SO4][160^\circ C-170^\circ C]\underset{Ethene}{C2H4}}\]
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संबंधित प्रश्न
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
Give reason for the following:
When diluting concentrated sulphuric acid, the acid should be added to water and not water to the acid.
Give reason for the following:
Concentrated sulphuric acid must be stored in airtight bottles.
Choose the current answer from the options given below :
Which of the following gas dissolves in H2SO4 to give alum?
Fill in the blank with appropriate word/words :
Oil of Vitriol is ___________
A, B, C and D summarise the properties of sulphuric acid depending on whether it is dilute or concentrated.
A = Typical acid property
B = Non-Volatile acid
C = Oxidising agent
D = Dehydrating agent
Choose the property (A, B, C or D) depending on which is relevant to each of the following :
(i) Preparation of hydrogen chloride gas
(ii) Preparation of copper sulphate from copper oxide
(iii) Action of cone, sulphuric acid on sulphur
Sulphuric acid is manufactured by the contact process.
Name the catalyst used.
Sulphuric acid is manufactured by the contact process.
Name the chemical used to dissolve SO3 and also name the product formed. Give all the main reactions to this process.
Sulphuric acid is manufactured by the contact process
Name a gas that can be oxidized to sulphur.
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
