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प्रश्न
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.
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उत्तर
The chemical used to dissolve SO3 is concentrated sulphuric acid. The product formed is the oleum or pyrosulphuric acid.
\[\ce{SO3 + H2SO4 -> H2S2O7}\]
Main reactions of the process are:
\[\ce{S + O2 -> SO2}\]
\[\ce{4FeS2 + 11O2 -> 2Fe2O3 + 8SO2}\]
\[\ce{2SO2 + O2 <=>[V2O5][450^\circ C] 2SO3}\]
\[\ce{SO3 + H2SO4 -> H2S2O7}\]
\[\ce{H2S2O7 + H2O -> 2H2SO4}\]
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संबंधित प्रश्न
What is the name given to the salts of sulphurous acid?
Give reasons for the following:
Brisk effervescence is seen when oil of vitriol is added to sodium carbonate.
Distinguish between the following pairs of compounds using the reagent given in the bracket.
Ferrous sulphate solution and ferric sulphate solution. (Using sodium hydroxide solution)
What would you observe in the following case?
100ml of 98% sulphuric acid is kept open.
Give reason for the following:
In the contact process, sulphur dioxide is dissolved in 98% sulphuric acid and not in water.
How are the following conversions brought about? Give equation and condition:
Sulphur trioxide to sulphur acid.
Give examples of the use of sulphuric acid as
An electrolyte in everyday use
Fill in the blank with appropriate word/words :
For the reaction SO2 + O2⇌ SO3 + Heat, the favourable conditions are _________ and __________.
State the observation for the following, when:
Concentrated sulphuric acid is added to carbon.
Identify the following:
The element having electronic configuration 2, 8, 6.
