Which statement about atom economy and percentage yield is correct?
A high percentage yield always guarantees a high atom economy.
Atom economy is calculated using the actual mass of the desired product obtained in a real reaction.
An addition reaction, in which all reactant atoms are incorporated into a single desired product, has an atom economy of 100%100\%100%.
Industrial chemical processes aim for a low atom economy to minimize waste and environmental impact.
91 exam-style questions on OCR GCSE Chemistry Monitoring chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.