O-LevelChemistryRates of Reaction5070/11 · Oct/Nov 2016 · Q181 Mark
Gold is used as a catalyst in some chemical reactions. In these reactions, gold • helps reduce the energy costs of the reaction. • increases the yield of the reaction. • is unchanged at the end of the reaction. • speeds up the rate of the reaction. How many of these statements are correct?
A1
B2
C3
D4
✓ Correct answer
C: 3
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