Chemistry 0620 · IGCSE · Reversible reactions and equilibrium

Reversible reactions and equilibrium — practice question

Sulfuric acid is produced by the Contact process. One of the reactions is shown below. $2\text{SO}_2(g) + \text{O}_2(g) \rightleftharpoons 2\text{SO}_3(g)$ The forward reaction is exothermic. Which option is correct?

  • AStatement 1 is correct and explains statement 2.
  • BStatement 1 and statement 3 are correct.
  • CStatement 2 and statement 4 are correct.
  • DStatement 3 is correct and explains statement 4.

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