Chemistry 0620 · IGCSE · Redox

Redox — practice question

Magnesium reacts with dilute hydrochloric acid. Which statement about the particles involved in the reaction is correct?

  • AIncreasing the concentration of dilute hydrochloric acid increases the collision rate but has no effect on the activation energy.
  • BIncreasing the concentration of dilute hydrochloric acid increases the collision rate and the activation energy.
  • CIncreasing the temperature of the reaction increases the activation energy.
  • DIncreasing the temperature of the reaction causes all collisions to lead to a reaction.

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