Gold: History, Properties, and Extraction

Which ancient civilization is known for mining gold to create jewelry and religious artifacts?

• Chinese

• Greeks

• Egyptians

• Romans

What percentage of processed gold is used in the fashion industry?

• 65%

• 50%

• 25%

• 80%

What percentage of the gold market is accounted for by industrial applications?

• 10%

• 25%

• 40%

• 60%

What is the chemical symbol for gold?

• Ag

• Au

• Fe

• Pb

What is the unit of measurement for gold alloys?

• Ounces

• Carats

• Grams

• Pounds

Which method is NOT used for gold extraction?

• Amalgamation

• Flotation

• Cyanidation

• Distillation

What is the primary separation force used in placer deposit mining?

• Magnetism

• Gravity

• Pressure

• Electricity

Which process involves using mercury to extract gold?

• Amalgamation

• Carbon Slurry

• Flotation

• Cyanidation

What is the main reason hydraulic mining and dredging are illegal in many countries?

• Low efficiency

• High cost

• Environmental destruction

• Lack of resources

What is the new technology called that makes gold extraction from sulfide ore more feasible?

• Bioleaching

• Electrolysis

• Hydraulic Mining

• Dredging