IGCSE Metals C10

Which of these is not a property of metals?

• shiny
• good conductor of heat
• brittle
• ductile

What is an alloy?

• a mixture of metals
• a mixture of steel
• a mixture of non-metals
• a metal compound

Select the most reactive metal

• potassium
• sodium
• magnesium
• zinc

Select the least reactive metal

• potassium
• sodium
• magnesium
• zinc

Which metal should never be reacted with dilute acid

• sodium
• calcium
• zinc
• copper

magnesium + steam →

• magnesium steamide
• magnesium oxide + hydrogen
• magnesium hydroxide
• magnesium hydride + oxygen

In which reaction would displacement happen?

• copper + magnesium sulfate
• magnesium + copper sulfate
• iron + calcium sulfate
• iron + potassium sulfate

What is the name of iron ore?

• ironite
• haemaglobin
• haematite
• iron oxide

What are the three raw materials of the blast furnace?

• iron ore, limestone, coke
• iron oxide, calcium carbonate, carbon
• slag, molten iron, carbon dioxide
• slag, coke, iron ore

Complete the blast furnace equation
CaCO₃ →

• CaO + CO₂
• CaO₂ + CO
• Ca + CO₂
• Ca + CO₃