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Question
Which of the following metals do not undergo corrosion?
Which of the following metals do not undergo corrosion?
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Solution
The correct options are
B Gold
D Silver
Corrosion is a gradual degradation of the metal surface when it comes in contact with air and moisture. A layer of metal oxide or metal sulphide, etc. is formed on the surface which has properties different from the actual metal surface.
Gold and silver are the least reactive metals. They do not react with oxygen or moisture. So, they do not undergo corrosion.
B Gold
D Silver
Corrosion is a gradual degradation of the metal surface when it comes in contact with air and moisture. A layer of metal oxide or metal sulphide, etc. is formed on the surface which has properties different from the actual metal surface.
Gold and silver are the least reactive metals. They do not react with oxygen or moisture. So, they do not undergo corrosion.
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