D: 2 and 4
Oracle Prep sorts past-paper questions by topic, so you can drill Metals & Reactivity 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
Which substances react together to give hydrogen?
In the extraction of iron, carbon monoxide acts as
An alloy of copper and zinc is added to an excess of dilute hydrochloric acid. Which observations are correct?
The diagram shows the electrolysis of a concentrated aqueous solution containing both copper(II) ions and sodium ions…
The diagram shows the apparatus used to electrolyse lead(II) bromide using inert electrodes. Why does the lamp light …
A student performs two reactions. reaction 1 10 g of magnesium ribbon with excess 2.0mol/dm³ dilute hydrochloric acid…