ICSE Class 10 Answered
What are the steps involved in the contact process of manufacture of sulphuric acid.
Asked by Topperlearning User | 21 Apr, 2016, 09:00: AM
Expert Answer
Steps Involved in the Contact process
- Production of Sulphur Dioxide
SO2 is produced by roasting metallic sulphides in air.
4FeS2 +11O2 → 2Fe2O3 + 8SO2
- Purification of Gases
To enhance the efficiency of a catalyst, various impurities present in the mixture of sulphur dioxide and air are first removed.
- Catalytic Oxidation of Sulphur Dioxide
Oxidation of SO2 to SO3 at 450°C in the presence of catalyst vanadium pentaoxide.
- Absorption of Sulphur Trioxide in Sulphuric Acid
Sulphur trioxide vapours are absorbed by a stream of conc. sulphuric acid.
SO3 + H2SO4 → H2S2O7 (oleum or pyrosulphuric acid)
- Dilution of Oleum to Obtain Sulphuric Acid
A calculated amount of water is added to obtain sulphuric acid of desired strength.
H2S2O7 + H2O → 2H2SO4
Answered by | 21 Apr, 2016, 11:00: AM
Concept Videos
ICSE 10 - Chemistry
Asked by sagarmishra | 11 Mar, 2024, 06:36: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by daswar4566 | 06 Feb, 2024, 08:38: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by praggya.srivastava.g1972 | 22 Aug, 2023, 04:45: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by himnishagarwal1812 | 05 Jan, 2022, 05:31: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by rekhavaradkar53 | 04 Jan, 2022, 09:40: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by Rohithgff | 22 Feb, 2021, 04:44: AM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by ramasareverma99 | 26 Oct, 2020, 09:35: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by Himadri | 26 Jul, 2020, 11:01: PM
ANSWERED BY EXPERT
ICSE 10 - Chemistry
Asked by kryngnga | 10 Jun, 2020, 11:15: AM
ANSWERED BY EXPERT