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Question
Rusting of iron can be prevented by:
Rusting of iron can be prevented by:
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Solution
The correct options are
A painting
B galvanizing
To prevent iron articles from rusting, avoid the direct contact of iron articles with oxygen, or water, or both. If there is no direct contact of metal with the atmosphere than rusting will happen slowly. One simple way is to apply a coat of paint or grease. In fact, these coats should be applied regularly to prevent rusting. Another way is to deposit a layer of a metal like chromium or zinc on iron. This process of depositing a layer of zinc on iron is called galvanisation.
Scrubbing is used to remove harmful materials from industrial exhaust gases before they are released into the environment.
A painting
B galvanizing
To prevent iron articles from rusting, avoid the direct contact of iron articles with oxygen, or water, or both. If there is no direct contact of metal with the atmosphere than rusting will happen slowly. One simple way is to apply a coat of paint or grease. In fact, these coats should be applied regularly to prevent rusting. Another way is to deposit a layer of a metal like chromium or zinc on iron. This process of depositing a layer of zinc on iron is called galvanisation.
Scrubbing is used to remove harmful materials from industrial exhaust gases before they are released into the environment.
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