Reactivity - Recap!

Which of these three metals is the most reactive: potassium, iron or gold?

• Potassium

• Iron

• Gold

Which of these three metals is the least reactive: iron, copper or platinum?

• Iron

• Copper

• Platinum

Which gas is produced when magnesium reacts with hydrochloric acid?

• Carbon Dioxide

• Oxygen

• Hydrogen

What is the test for hydrogen?

• A burning splint goes out

• A burning splint burns more brightly

• A burning splint makes a squeaky pop sound.

What are the products when calcium reacts with nitric acid?

• Calcium chloride and hydrogen

• Calcium oxide and carbon dioxide

• Calcium nitrate and hydrogen

What are the products when magnesium reacts with sulphuric acid?

• Magnesium sulphate and hydrogen

• Magnesium nitrate and hydrogen

• Magnesium sulphate and water

What type of reaction involves a more reactive metal pushing a less reactive metal out of a compound?

• Oxidation

• Combustion

• Displacement

What happens when zinc is added to a solution of copper sulphate?

• Nothing happens

• The zinc displaces the copper

• The mixture catches on fire

What happens when copper is added to a solution of magnesium chloride?

• Chlorine is produced

• Nothing happens

• The copper displaces the magnesium.

What are the products when zinc is added to lead nitrate solution?

• Zinc nitrate solution and lead

• There is no reaction

• Hydrogen and zinc nitrate