Which of the following is the main step in the contact process for the industrial production of sulfuric acid?
A) Oxidation of SO2 in the presence of a catalyst
B) Oxidation of SO3 in the presence of a catalyst
C) Oxidation of SO in the presence of a catalyst
D) Reduction of SO2 in the presence of a catalyst
E) Reduction of SO4 in the presence of a catalyst
Correct Answer:
Verified
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