Extracción

The video tutorial explains how most metals are bonded with elements like oxygen and sulfur. To extract pure metals, reduction reactions are necessary. Iron is extracted from iron oxide using carbon, while aluminum is extracted through electrolysis of its oxide.

What is a common method to obtain pure metals from their bonded forms?

• Condensation process

• Reduction reaction

• Sublimation process

• Oxidation reaction

Which of the following is not typically bonded with metals in the earth?

• Oxygen

• Sulfur

• Nitrogen

• Carbon

Which element is used to extract iron from iron oxide?

• Hydrogen

• Carbon

• Sulfur

• Oxygen

What process is used to extract aluminum from its oxide?

• Distillation

• Electrolysis

• Filtration

• Heating with carbon

What is the primary purpose of electrolysis in metal extraction?

• To increase the metal's temperature

• To oxidize the metal

• To reduce the metal

• To bond the metal with oxygen