Question

Give two necessay conditions for rusting to occur

Answer 1

Answer:

There are some necessary conditions for rusting are as follows as:

• Due to the presence of oxygen and water which is slightly acidic in nature. It causes rusting because water and Oxygen is essential for rusting.
• Pure iron don't rust in dry and Carbon dioxide.
• Oxygen is very useful for rusting of iron because oxygen reacts very fast with metals called reducing agent.
• Acids and other salts also cause rusting of iron because sometimes salts and acids reacts with metals like iron to form rusting.

Answer 2

first of all, what's rusting?

rusting is the process of corrosion in iron. when iron get corroded. a layer of reddish brown layer forms on it and it's called rust.

necessary conditions for rusting to occur :-

• corrosion takes place in the presence of oxygen and water. so air and moisture (water) are necessary for rusting.

• also acidic gases like carbondioxide (Co2), sulphur dioxide (So2) etc increase the rate of rusting.