C: 25, 55
Oracle Prep sorts past-paper questions by topic, so you can drill Rates of Reaction and see which topics are most likely to come up next.
Sign up free →Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content
The diagram represents the manufacture of sulfuric acid by the Contact process. What is used in step R?
A student measured the rate of reaction between calcium carbonate and dilute hydrochloric acid. A graph showing the v…
The diagram shows an apparatus used to compare rates of diffusion. At which labelled position did a white deposit of …
Which pair of metals are not oxidised when added to water? 1. calcium 2. copper 3. potassium 4. silver
Part of the Periodic Table is shown. The letters are not the symbols of the elements. Which statement about the eleme…
Three different beakers are set up as shown. In beaker 1 metal W is displaced from solution. In beaker 2 metal X is d…