May/June 2026 Paper 23

2026 · 40 questions · 40 parts · 40 marks

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20CatalysisEasy1 mark
Which row describes the effect of a catalyst on a reaction?
effect on activation energy, effect on enthalpy change,
Adecreasesdecreases
Bdecreasesno change
Cincreasesdecreases
Dincreasesno change