What is an ore?

• A metal

• A rock

• Metal & non-metal compounds from which metal can be extracted

• An element

How are 'native' metals found?

• Pure, in the ground

• As an ore

• Bonded with other metal

• In the countryside

What is the common name of an ore containing iron?

• Bauxite

• Haematite

• Malachite

• Cuprite

Which of the following metals is not a 'native 'metal?

• Silver

• Platinium

• Gold

• Magnesium

Iron exists as iron oxide. How would we extract iron from its ore?

• It is a native metal

• Electrolysis

• It does not form iron oxide

• Reaction with carbon

What is the correct equation for the extraction of iron?

• Iron oxide --> Iron + oxygen

• Iron oxide + carbon --> Iron + carbon oxide

• Iron oxide + carbon --> Iron

• Iron oxide + carbon --> Iron + carbon dioxide

How is iron extracted from iron ore?

• Blast furnace

• Electrolysis

• Smelting in air

• Bioleaching

Is iron more or less reactive with carbon?

• More

• Less

Which of these metals cannot be extracted by heating with carbon?

• Sn

• Pb

• Fe

• Al

Which of these metals can be extracted by heating with carbon?

• K

• Cu

• Na

• M