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GCSE Chemistry · key term
A reaction other than the expected reaction that uses some reactant and forms different products.
Used by AQA and Edexcel
Specification 4.3.3.1 · Paper 1
Revise: Percentage YieldSome reactants may take part in side reactions and form products different from the expected one. Those reactant atoms are conserved, but they are not present in the desired product.
Specification 5.12C · Paper 1
A competing reaction that consumes reactants and forms an unwanted product instead of some of the desired product.
Revise: Actual vs Theoretical YieldUnder particular conditions, a side reaction can compete for the same reactants and form unwanted products. Reactant diverted into this pathway is no longer available to form as much of the desired product.
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