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In the contact process for industrial manufacture of sulphuric acid some amount of sulphuric acid is used as a starting material. Explain briefly. What is the catalyst used in the oxidation of SO 2 ?

In the contact process for industrial manufacture of sulphuric acid some amount of sulphuric acid is used as a starting material. Explain briefly. What is the catalyst used in the oxidation of SO2?

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
10 years ago
Sulphar trioxide produced in the contact process is absorbed by sulphuric acid forming H2S2O7. It is not dissolved in water as it gives a dense fog of sulphuric acid particle.
The catalyst used in the contact process is vanadium pentoxide.

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