Advertisement Remove all ads

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). - Chemistry

Advertisement Remove all ads
Advertisement Remove all ads
Short Note

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).

Advertisement Remove all ads


The theory of manufacture of sulphuric acid by contact process involves following steps:

i. Production of SO : SOis produced by burning sulphur or roasting iron pyrites.
        S + O2 → SO   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

Concept: Manufacture of Sulphuric Acid (Constant Process)
  Is there an error in this question or solution?
Advertisement Remove all ads


Frank ICSE Class 10 Chemistry Part 2
Chapter 10 Study of Sulphur Compound: Sulphuric Acid
Exercise | Q 2 | Page 249
Advertisement Remove all ads

View all notifications

      Forgot password?
View in app×