Author Question: Which of the following statements about the corrosion of iron and aluminum is correct? A) ... (Read 79 times)

jlmhmf · **on:** Aug 27, 2018

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.

Question 2

Iron is so abundant and useful that it accounts for roughly ________ of the world's metal production.

A) 10
B) 35
C) 65
D) 95