Which of the following statements about the rusting of iron is true?
A)Iron is reduced in the presence of oxygen.
B)Iron is oxidized in the presence of oxygen.
C)The iron(III)hydroxide forms a hard coating that protects the iron from undergoing further corrosion.
D)Iron will rust more quickly in the absence of water.

Question

Quizplus · Accepted Answer

Rusting of iron is an oxidation process, in which iron atoms lose electrons to oxygen atoms. This results in the formation of iron(III)oxide, or rust. Therefore, option B is the correct statement, as iron is oxidized in the presence of oxygen during rusting. The other statements are incorrect; option A is the opposite of what happens during rusting, and option C is incorrect because the iron(III)hydroxide coating that forms is actually porous and allows further corrosion to occur. Option D is also incorrect because rusting requires water or moisture to occur.

Which of the Following Statements About the Rusting of Iron