8. Which of the following is one way to prevent the corrosion of iron?
A. Protect the iron from polluted air.
B. Add carbon to the iron.
C. Let the iron develop a natural coat of carbonate.
D. Paint exposed iron parts with protective paint.
2007-02-09 02:26:25 · 11 answers · asked by tami c 1 in Science & Mathematics ➔ Chemistry
Coating the iron with paint is the correct answer. You have to prevent the iron from being exposed to the oxygen in the air to prevent corrosion.
2007-02-09 02:35:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
ahhh i know people already answered this question.. but let's try to decipher the question itself. Once you master deciphering multiple choice questions.. you will be able to answer them yourself
the question asks you to PREVENT the corrosion of iron.. well what is the corrosion of iron?
well corrosion happens when it's exposed in moist air? Wait a second.. HOW? AHHH moist air..meaning water is involved...
alright so iron interacts with water and splits up.. creating rust...
well yeah you can protect the iron from polluted air.. but ermm how? okay we'll keep this one empty
b. add carbon to the iron... okay so you add carbon to the iron.. annnnd what exactly is this supposed to do? ermm nothing? right b is cancelled..
c. Let the iron develop a natural coat of carbonate.. OOHHHHH sounds interesting... but how long do you have to wait? won't it just get rusty? c is cancelled
d.paint exposed iron parts with protective paint..AHHH paint.. an inhibitor.. neat.. okay this can be a possible answer..
back to a.. protect iron from polluted air.. we're not protecting it from polluted air.. MOIST AIR .. air with water! so let's cancel a out..
that leaves us with d.
multiple choice is always about word play.. take your time.. it's real simple if you know what the question is asking you..
2007-02-09 03:06:06 · answer #2 · answered by Anonymous · 0⤊ 0⤋
D. Paint.
Simplest method of preventing SURFACE corrosion is to create a non-corrosive film on the surface of a metal. eg paint.
Reckon you are talikng about SURFACE corrosion ie rusting.
If you are talking about INTERNAL corrosion--
well, the whole thing becomes rather complex.
You need to know the existing Carbon percentage & alloying elements in your piece of Iron before a serious comment can be made.
2007-02-09 02:51:48 · answer #3 · answered by kapilbansalagra 4 · 0⤊ 0⤋
I would suggest painting it with protective paint. Iron chemically bonds with oxygen producing Ferric Oxide (rust) so painting it would protect the iron from the oxygen so it will not rust.
2007-02-09 02:33:24 · answer #4 · answered by Dhan Louie ☺ 2 · 0⤊ 0⤋
D - iron can't rust without air
Rust is just iron oxide, if you paint the iron then air can't get to it and it can't rust.
2007-02-09 02:28:52 · answer #5 · answered by Brian K² 6 · 1⤊ 0⤋
D.
"Protection from oxygen" is only partially correct, because oxygen means pure oxygen and iron needs moisture (water), too, to get rusted.
"Protection from air" may be correct, assuming your air is not dry air.
2007-02-09 02:49:09 · answer #6 · answered by myyahoo! 2 · 0⤊ 0⤋
D it is oxidization that cause it to rust so protective paints will stop this happening.
2007-02-09 02:29:07 · answer #7 · answered by Anonymous · 0⤊ 0⤋
paint iron parts with paint...
2007-02-09 02:33:33 · answer #8 · answered by Sarang D 1 · 0⤊ 0⤋
Hey Tami, do you own homework!
2007-02-09 02:32:45 · answer #9 · answered by Trail Hiker 3 · 0⤊ 1⤋
d
2007-02-09 02:29:03 · answer #10 · answered by Amante D 3 · 0⤊ 0⤋