The Reactivity Series: Metals not only have same physical properties, they also undergo many similar chemical reactions. However, one metal may react more or less vigorously with a substance than another metal. The metal that reacts more vigorously is said to be more...
Reactions: Metals with acids: Many metals react with dilute acids to produce a salt and hydrogen. For example, Mg (s) + HCl -> (aq) MgCl + H2 In the above reaction, the salt magnesium chloride is formed. In all reactions of metals with hydrochloric acid, a...
The Displacement Reactions of Metals: More reactive metals can displace less reactive metals from their salt solutions, oxides, etc. for example, solid iron displaces copper ions from a solution of copper (II) sulphate. Due to the action of iron, copper metal is...
Steel: It is produced by purifying the pig iron from the blast furnace by burning off impurities with oxygen gas. Controlled amounts of carbon are then added (0.5% carbon is mild steel, 1.5% carbon is high carbon steel). Mild steel is an example of steel that is low...
Rusting: It is the reaction of iron with air (oxygen) and water to form rust (hydrated iron(III) oxide). Rusting is a redox process. Many a times, this rusting needs to be prevented, and for that some methods have been devised, for example, rusting can be prevented by...
Aluminium Extraction: The main ore of aluminium is bauxite (aluminium oxide). After it is mined, it is first purified by adding it in sodium hydroxide. The impurities do not dissolve and are filtered off. The dissolved aluminium oxide is then precipitated out as...