Question

Which of the following is true about the process of oxidation?

• A. Freezing and melting of water in rock cracks cause disintegration.
• B. Oxygen reacts with iron present in rocks to loosen the original structure of the rock.
• C. Water dissolves the calcium carbonate present in rocks.
• D. Water affects iron present in rocks to cause rust.

Answer 1

The correct option is B Oxygen reacts with iron present in rocks to loosen the original structure of the rock.

Oxidation is a process where atmospheric oxygen reacts with iron present in the rocks to develop rust. The rust that develops on the rock gets removed easily, and loosens the original structure of the rock. Overtime, the rock completely breaks down.