Which one of the following products is obtained when sulphur trioxide is absorbed inconcentrated sulphuric acid?
Correct answer: A. Oleum
- A. Oleum
- B. Aqua Regia
- C. Hydrogen sulphide
- D. Sulphate ion
Explanation
The sulphur trioxide is first dissolved in concentrated sulphuric acid: The product is known as fuming sulphuric acid or oleum.
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About Chemical Equilibrium
Reversible reactions reach dynamic equilibrium when forward and reverse rates become equal, and Le Chatelier's principle predicts the effect of changing concentration, pressure or temperature. The chapter also covers solubility product, the common ion effect, buffer action and the conditions used in Haber's process, with equilibrium shifts distinguished from changes in the equilibrium constant.
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