Oxide Coating: Q&A - What's the Correct Answer?

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The discussion centers around a multiple-choice question where the original poster expresses uncertainty about the correct answer, speculating that it might be option d. They seek clarification on the correct answer and its rationale. Another participant suggests that the answer can be easily found through a quick online search, emphasizing the straightforward nature of the question. The original poster acknowledges the suggestion but indicates they have other material to review before pursuing that option. The mention of aluminum and iron oxide being porous is noted but lacks further elaboration.
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i'm guessing the answer is d). I am really not sure about that though... Can someone explain to me what the correct answer is suppose to be and why? Thanks.
 

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I'm guessing the aluminum, iron oxide is quite porous.
 
apchem, these are multiple choice questions, and it doesn't take more than a little Googling to find the correct answer - at least in this case.
 
Gokul43201 said:
apchem, these are multiple choice questions, and it doesn't take more than a little Googling to find the correct answer - at least in this case.

I suppose i'll try that later... but still lots of stuff to go through for now...
 
GCT said:
I'm guessing the aluminum, iron oxide is quite porous.

Thanks for answering
 

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