EXTRACTION OF IRON

A metal ore is ...

• Use metals mixed together in natural rocks that require extraction.

• A mixture of carbon and copper.

• A mixture of Carbon and Iron

• Another name for mild steel

Another name for Iron ore is...

• Mild Steel.

• Haematite.

• Slag.

• Calcium Oxide.

The four materials needed to extract Iron ore are...

• Haematite

• Limstones

• Carbon

• Air

• Calcium Hydroxide

The name of the huge oven where iron is extracted is known as ___.

• A blast furnace

• A Hydron Collider

• A Satellite

• An oil refinery

The following gases are useful when extracting Iron from its ore.

• Carbon Monoxide

• Carbon Dioxide

• Methane

• Haematite.

Iron oxide is _____ in the following reaction:

Fe₂O₃ (s) + 3CO (g) ---> 2Fe (l) + 3CO₂ (g)

• Oxidised

• Reduced

• Oxidised and Reduced

• None of the above

What substance is used to remove the impurities from the Iron extraction.

• Slag

• Limestone

• Lime

• Haematite

Why is the Iron from the reaction not suitable for immediate industrial use?

• It breaks easily / Not strong

• It is toxic.

• It is expensive

• it is unattractive

Steel is a mixture of these two substances.

• Iron

• Carbon

• Gold

• Silver

Silver and Gold are found naturally and are easily separated from impurities because _____.

• They are expensive.

• They are very unreactive.

• They are too reactive.

• None of the above.