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Question

Which of the following metals has been used for building boats because it has resistance to corrosion by sea water?

A
Copper
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B
Nickel
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C
Fungsten
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D
Titanium
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Solution

The correct option is D Titanium
Titanium is used for building boats.
Inert metals which do not react with gases in air seen as oxygen are found to be non-corrosive.
It is corrosion resistance because it forms stable, protective, oxide film when Ti is exposed to oxide film.

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