The table presents several facts about sulfur dioxide and sulfuric acid, together with comments on those facts. Which row is correct?
- AFact: In the manufacture of sulfuric acid, sulfur reacts with oxygen to make sulfur trioxide. Comment: The equation for this reaction is $2\text{S}(s) + 3\text{O}_2(g) \rightleftharpoons 2\text{SO}_3(g)$.
- BFact: Nickel is used as the catalyst in the Contact process. Comment: Catalysts speed up a reaction by lowering the activation energy, $E_a$.
- CFact: Sulfuric acid is used in car batteries. Comment: This increases the efficiency of the petrol engine.
- DFact: The use of low sulfur petrol is beneficial because it minimises the formation of acid rain. Comment: Sulfur dioxide is acidic because it is the oxide of a non‑metal.