Question

Write the conditions under which rusting takes place.

Answer 1

Iron and steel rust when they come into contact with water and oxygen. They rust faster in salt water or acid rain. Aluminum, on the other hand, does not corrode easily, because its surface is protected by a layer of aluminum oxide. The presence of water and oxygen is essential for the rusting of iron

Answer 2

Answer:

Rusting takes place in humid atmosphere. The oxygen present in the air along with water reacts with iron to form iron oxides. Iron rusts faster in salt water solution and acid rain. Some of the ways to prevent rusting are:

• Galvanisation

• Alloying

• Tinning

• Electroplating