8. What chemical reaction occurs when iron reacts with oxygen and moisture in the air?
A. Formation of aluminum oxide
B. Rusting
C. Release of carbon dioxide
9. Which material is considered biodegradable?
A. Plastic drinking straw
B. Nylon fishing line
C. Banana peel
10. What happens to a banana peel when it is discarded in a natural environment?
A. It remains unchanged
B. It decomposes into simpler organic compounds
C. It reacts with other materials to form new substances
D. It breaks down into smaller pieces
Answer (2)
The chemical reaction that occurs when iron reacts with oxygen and moisture in the air is known as rusting. This process leads to the formation of iron oxides, commonly referred to as rust. The correct choice is B. Rusting.
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B. Rusting C. Banana peel B.
