What are catalysts?
1 mark · NormalWhich statement best describes the role of a catalyst?
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Correct option: A catalyst increases the rate of a reaction and is chemically unchanged at the end.
Common mistakes: Selecting 'used up' or 'increases yield'
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Marking points
A1 · 1 mark · Correctly selects the statement that a catalyst increases the reaction rate and is chemically unchanged.
Worked solution
Correct answer: A catalyst increases the rate of a reaction and is chemically unchanged at the end.