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प्रश्न
Describe the theory of manufacture of sulphuric acid by contact process, with all the necessary conditions (No technical details are required but equations should be given for each stage of process).
उत्तर
The theory of manufacture of sulphuric acid by contact process involves following steps:
i. Production of SO2 : SO2 is produced by burning sulphur or roasting iron pyrites.
S + O2 → SO2 Or
4FeS2 + 11O2 → 2Fe2O3 + 8SO2
ii. Catalytic oxidation of SO2 by air to give sulphur trioxide:
2SO2 + O2 ⇌ 2SO3 + Heat
iii. Absorption of sulphur trioxide in 98% sulphuric acid to form oleum:
SO3 + H2SO4 → H2S2O7
iv. Dilution of oleum to get sulphuric acid of desired concentration:
H2S2O7 + H2O → 2H2SO4
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संबंधित प्रश्न
Sulphuric acid is manufactured by the contact process.
Give the conditions for the oxidation of \[\ce{SO2}\]
Sulphuric acid is manufactured by contact process.
write the main reactions of this process.
What property of conc. \[\ce{H2SO4}\] is made use of the following case? Give an equation for the reaction on the same:
In the preparation of \[\ce{CO}\] and \[\ce{HCOOH}\]
Name the following:
The catalyst used in the constant process.
Choose the current answer from the options given below :
In the preparation of H2SO4 by contact process V2O3 is used as a catalyst in the reaction. It is
Fill in the blank with appropriate word/words :
The catalyst used in contact process for the manufacture of H2SO4 is ___________ or _________.
What is the purpose of the contact process?
Name the two gases that are combined during the contact process.
With the help of equations, give an outline for the manufacture of sulphuric acid by the contact process.
The catalyst preferred in the conversion of Sulphur dioxide to Sulphur trioxide is ______.
