Man's physical universe



6. List ten metals and mention at least one important use of each.

7. What are the reducing agents most commonly used in metallurgical operations?

8. Aluminum is a more abundant element than iron. How, then, do you account

for the fact that aluminum is so much more costly than iron?

9. What are the most useful properties of tungsten?

10. Name a few metals added to steel to give such desirable properties as hardness,

resistance to corrosion, etc.

IL Under what conditions will iron and steel corrode most readily?

12. Why does aluminum not corrode readily?

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