Extraction of metals KS3

Metal A is more reactive than Metal B. The following displacement reaction takes place.

Metal A + Metal B in compound ---> Metal B + Metal A in compound.

True or False.

• True

• False

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

Which of these elements is unlikely to be found in the ground in its pure form?

• gold

• platinum

• aluminium

• silver

What is the removal of oxygen from a substance called?

• reduction
• extraction
• electrolysis
• oxidation

What is the addition of oxygen to a substance called?

• decomposition
• reduction
• oxidation
• extraction

Which element cannot be extracted from its ore by reduction with carbon?

• iron
• aluminium
• copper
• lead

Which element cannot be extracted from its ore by reduction with carbon?

• iron

• aluminium

• copper

• zinc

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

Many metals are extracted from their ores by heating them with carbon in huge furnaces. Which metal(s) cannot be extracted using this method?

• Aluminum

• Calcium

• Zinc

• Copper