---
title: "Extracting Metals: Reduction with Carbon and Choosing a Method"
description: "A metal sits in its ore as a compound, and getting it out is a reduction. Where the metal falls in the reactivity series decides whether carbon is a strong enough reducing agent or whether electricity"
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source: https://lightmysky.com/learn/science/extracting-metals-reduction-with-carbon-and-choosing-a-method-mt_LRAEJa8OLr.md
retrieved: 2026-09-12
---

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# Extracting Metals: Reduction with Carbon and Choosing a Method

A metal sits in its ore as a compound, and getting it out is a reduction. Where the metal falls in the reactivity series decides whether carbon is a strong enough reducing agent or whether electricity has to do the job, which is why aluminium stayed a precious metal long after iron was common.

Subject: Science · Area: Matter & Materials · Ages 14 to 15
Page: https://lightmysky.com/learn/science/extracting-metals-reduction-with-carbon-and-choosing-a-method-mt_LRAEJa8OLr

## Ready when they can

- Use the reactivity series to predict whether a given metal can be extracted by reduction with carbon
- Write the reduction of a metal oxide by carbon and identify what is oxidised and what is reduced
- Explain why the extraction method for a metal is an economic argument as well as a chemical one

## Lesson: Who pulls the metal free

Metals sit in rock locked inside compounds, mostly oxides mixed with useless stone. Unreactive metals barely cling to oxygen. Reactive metals like aluminium grip so hard that ordinary chemical tricks fail. That grip decides the extraction method.

Getting a metal out is always a reduction: the metal ion gains electrons and becomes free metal. Carbon burns happily in oxygen, so it rips oxygen from weaker partners like iron and copper oxides. The carbon is oxidised while the metal is reduced.

**Example.** Read the method off the reactivity series. Carbon sits between aluminium and zinc. Metals below carbon fall to carbon, and metals above it, aluminium included, need electricity instead.

**Tip.** Electrolysis drags metal ions to an electrode with huge currents, and that power costs money. That is why aluminium stayed precious long after iron tools were common. Choosing a method is a money question too.

**Recap.** Below carbon, carbon reduces the oxide; above carbon, electricity must; and the power bill explains the price.

## Practice

8 questions on this page, each with its working shown.

## Needs first

- [Redox: Oxidation and Reduction as Electron Transfer](https://lightmysky.com/learn/science/redox-oxidation-and-reduction-as-electron-transfer-mt_NMTikR0FTM)
- [The Reactivity Series](https://lightmysky.com/learn/science/the-reactivity-series-mt_zsYW61cn_q)