Metals and Ores

What form is metal found in the ground?

• Ore

• Carbon

• Hydrogen

• Nitrogen

Which metal is usually found in the ground in usable form?

• Gold

• Iron

• Copper

• Aluminium

What is the process called to extract a metal from its ore by heating beyond the melting point?

• Smelting

• Electrolysis

• Refining

• Extraction

What are the oxidizing agents used in smelting?

• Air

• Water

• Fire

• Earth

What is the reducing agent used in smelting?

• Coke

• Coal

• Oil

• Gas

What is the process called to convert iron ore into iron?

• Smelting

• Electrolysis

• Refining

• Extraction

What element does ore contain most of?

• Oxygen

• Clay

• Rock

• Sand

What is the process called to convert bauxite into aluminium?

• Smelting

• Electrolysis

• Refining

• Extraction

What is smelting a form of?

• Extractive Metallurgy

• Chemical Engineering

• Mechanical Engineering

• Civil Engineering

What is the purpose of refining a metal?

• To extract the metal from its ore

• To convert the metal into a simple compound

• To convert the metal into a usable form

• To remove impurities from the metal