5.4.1.3 Extraction of Metals and Reduction — AQA Combined Science Trilogy 8464

Understand that highly unreactive metals (like gold) are found as elements in the Earth, but the majority of metals are found as compounds requiring chemical extraction.
Explain that metals which are less reactive than carbon can be safely extracted from their oxide compounds via reduction with carbon.
Define reduction in the specific context of metal extraction as the chemical loss of oxygen.
Interpret and evaluate different metal extraction processes when supplied with relevant chemical information.
Identify exactly which substances are oxidized and which are reduced in extraction processes, analyzing it in terms of oxygen transfer.

Extraction of Metals and Reduction