The reactivity series shows metals in order of reactivity. The reactivity of a metal can be worked out by studying its reactions. Iron and aluminium are extracted from their ores in different ways.
Which list shows the metals in the correct order of increasing reactivity?
Iron aluminium zinc
Iron zinc aluminium
Zinc aluminium iron
What products are formed when zinc metal reacts with steam?
Zinc hydroxide + water
Zinc chloride + hydrogen
Zinc oxide + hydrogen
Which of these combinations of metals and metal compounds will produce a displacement reaction?
Copper + magnesium sulfate solution
Iron chloride solution + magnesium
Aluminium + sodium chloride solution
When a metal is extracted from its ore using carbon, what is oxidised?
Why can heating with carbon not be used to extract aluminium from aluminium ores?
Aluminium is unreactive
Aluminium forms an oxide
Aluminium is too reactive
What gas forms at the positive electrode during the extraction of aluminium by electrolysis?
Most metals can be extracted from their ores by electrolysis. What is the main reason that copper metal is not extracted from its ore by electrolysis?
The process produces dangerous waste gases
The process uses a lot of electrical energy
The copper ore is particularly difficult to mine
It was found that metal X did not react with dilute acids. What does this definitely tell us about the position of metal X in the reactivity series?
It is at the bottom of the reactivity series
It is above carbon in the reactivity series
It is below hydrogen in the reactivity series
What factor does the biological extraction of copper, using phytoextraction, depend on?
That copper compounds are poisonous
That plants can take in copper compounds from the soil
That photosynthesis stores energy in plants
Magnesium can displace iron from solutions of iron(II) sulfate. Which of the following represents the ionic equation which takes place during this reaction? - Higher
Mg(s) + Fe2+(aq) → Mg2+(aq) + Fe(s)
Mg(s) + FeSO4(aq) → MgSO4(aq) + Fe(s)
Mg(s) + Fe2+(aq) + SO42-(aq) → Mg2+(aq) + SO42-(aq) + Fe(s)