In contact process for the manufacture of sulphuric acid, sulphur trioxide is dissolved in sulphuric acid in form oleum. Oleum moleculr formula is:
Correct answer: D. H2S2O7
- A. H2S2O3
- B. H2S2O5
- C. H2S2O6
- D. H2S2O7
Explanation
The correct answer is H2S2O7, which represents oleum. Oleum is formed when sulfur trioxide (SO3) is dissolved in sulfuric acid (H2SO4), resulting in the molecular formula H2S2O7. The other options are incorrect because they either represent non-existent or unrelated compounds.
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