Extraction of metals

During the extraction of metals, metal ions are reduced forming...?

metal atoms

The method used to extract a metal from its ore depends on

the position of the metal in the reactivity series

What are the methods used to extract metals?

- Heat alone
- Heating with carbon or carbon monoxide
- Electrolysis

The heat alone method is used for extracting....?

Mecury,Silver and Gold

The heating with carbon method is used for extracting...?

Copper,Iron,Tin,Lead and Zinc

The heating using electrolysis method is used for extracting?

Potassium,Sodium,Lithium,Calcium and Aluminium

What is electrolysis?

the decomposition of an ionic compound into its elements using electricity

What is to be used if the products of electrolysis are to be identified?

A d.c. supply

__________ ions gain electron at the ___________ electrode

positive, negative

_____________ ions lose electrons at the ____________ electrode

negative,positive