Show that both air and water are necessary for corrosion of iron.

Suggest an experiment to prove that the presence of air and water are essential for corrosion. Explain the procedure.

How can you say water is necessary for us ?

Do you think both living and nonliving things are necessary for our environment. Why?

Zinc is used to protect corrosion of iron because

Which method is very easy to prevent corrosion of iron frames in our houses?

When an Iron object is painted, the process of corrosion is reduced due to

Both coke and lime stone are used in smelting of iron ore. Why?

Give the electro-chemical reaction that represents the corrosion or rusting of iron.