Which of the Following Statements About the Corrosion of Iron

question 98

Multiple Choice

Which of the following statements about the corrosion of iron and aluminum is correct?

• A) Aluminum reacts with oxygen to form an Al₂O₃ coating, which can flake off easily and allow more aluminum to undergo corrosion.
• B) Iron reacts with oxygen to form an Fe₂O₃ coating, which can flake off easily and allow more iron to undergo corrosion.
• C) Both aluminum and iron react with oxygen to form oxides which are hard and protect the metal from corrosion.
• D) Aluminum corrodes more rapidly than iron does because it is lighter.

---

Definitions:

Advertising Budget

The allocation of funds toward advertising activities intended to communicate products, services, or brand messages to target customers.

Selling Price

The amount for which a product or service is sold to the customer.

Margin Of Safety

The difference between actual sales and breakeven sales, quantifying how much output or sales level can drop before a business incurs a loss.

Variable Expenses

Costs that change in direct proportion to changes in the level of activity or production volume, such as raw material costs.