Which statement about percentage yield and atom economy is correct?
A reaction with an atom economy of 100% always has a percentage yield of 100%.
Percentage yield can be worked out from the balanced equation alone.
Increasing the percentage yield of a reaction also increases its atom economy.
Atom economy can be worked out from the balanced equation alone.
57 exam-style questions on OCR GCSE Chemistry 5.1 Monitoring chemical reactions, covering 5.1.1 The technique of titration, 5.1.2 Theoretical mass, percentage yield and atom economy, 5.1.3 Concentration of a solution in mol/dm3, 5.1.4 Concentration calculations and titration results, 5.1.5 Molar gas volume and volumes of gases in reactions, and 5.1.6 Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.