4N Extraction of Metals

What is an ore?

• a solid metal
• a rock cantaining a metal combined with other elements
• an element
• an object used to row a boat

Tags

NGSS.MS-PS1-1

Which of these elements is unlikely to be found native?

• gold
• platinum
• aluminium
• silver

Which series is used to predict the reactions of metals with carbon and other elements?

• reactionary series
• reaction series
• redox series
• reactivity series

What is the name of the process that uses electricity to separate the elements in a compound?

• reduction
• electrolysis
• extraction
• mining

How would you best extract iron from haematite (iron ore)?

• reduction by carbon
• electrolysis
• decomposition
• oxidation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which reaction is used to keep the furnace hot?

• CO₂ + C -> 2CO
• C + O₂ ->  CO₂
• Fe₂O₃ + 3C -> 2Fe + 3CO
• C + O₂ ->  CO₂

Which gas is produced as a waste product when iron is extracted from its ore in the blast furnace?

• Carbon dioxide
• Hydrogen
• Nitrogen
• Oxygen

Iron is made by burning its ore, hematite. Hematite contains silica. What reacts with this impurity to remove it?

• Carbon
• Carbon Dioxide
• Silicon dioxide
• Calcium Oxide

Which substance is not involved in the extraction of iron from hematite?

• Carbon Monoxide
• Carbon
• Nitrogen
• None of the above

Name a metal that could be extracted from its metal oxide by heating with carbon.

• iron
• aluminium
• gold
• magnesium