State two conditions necessary for rusting of iron.

Very Short Answer

The presence of water and oxygen is essential for the rusting of iron.
Impurities in the iron, the presence of the water vapor, acids, salts and carbon dioxide hastens rusting.

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Chapter 8 Periodic Classification of Elements
Evaluation | Q VI. 4. | Page 122

Explain why rusting of iron objects is faster in coastal areas than in deserts.

What special name is given to the corrosion of iron?

The process of depositing a thin layer of zinc on iron articles is called ______.

Name five methods of preventing rusting of iron.

Choose the correct alternative and rewrite the following:

Iron is _____________________.

Answer the following question.

List two properties of alloys.

Give a reason why rust turns moist red litmus blue.

Observe the following figure and write the answer of the question.

The process of coating the surface of the metal with a thin layer of zinc is called ______

State whether the following statement is true or false:

Ships suffer a lot of damage though they are painted.