Chemistry 5070 · O Level · Rate of reaction

Rate of reaction — practice question

Magnesium reacts with dilute sulfuric acid. $\text{Mg}(s) + \text{H}_2\text{SO}_4(aq) \rightarrow \text{MgSO}_4(aq) + \text{H}_2(g)$ Which alterations to the conditions would give the slowest rate of hydrogen production?

  • Aacid concentration: decrease; solid particle size: decrease; temperature: increase
  • Bacid concentration: decrease; solid particle size: increase; temperature: decrease
  • Cacid concentration: increase; solid particle size: decrease; temperature: increase
  • Dacid concentration: increase; solid particle size: increase; temperature: decrease

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