2. Which of the following elements would form (1) acidic oxides and (ii) basic oxides?
(a) carbon
(b) magnesium (c) sulphur (d) zinc (e) iron
What is meant by 'rusting of iron'?
Answers
Explanation:
acidic oxide --->sulphur
basic oxide-----> magnesium , sulphur and iron
EXPLANATION--
Basic oxides, can also called base anhydrides which means "a base without water", are usually formed by reacting of oxygen with metals, especially alkali (+1 oxidation state) and alkaline earth metals (+2 oxidation state).
RUSTING OF IRON --
Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures. This rust is formed from a redox reaction between oxygen and iron in an environment containing water (such as air containing high levels of moisture)
Answer:
Carbon and sulphur would form acidic oxides
Magnesium, Sulphur and iron will form basic oxides
Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures. This rust is formed from a redox reaction between oxygen and iron in an environment containing water (such as air containing high levels of moisture). The rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a powder.
Chemical reaction :
4Fe + 3O2 + 6H2O → 4Fe(OH)3.