Science, asked by patredeep716, 5 months ago

metals acquire dull appearance when exposed to air for long time give reason​

Answers

Answered by malika143
0

Answer:

metals acquire dull appearance when exposed to air for long time because when metal react with oxygen and water vapours or another gases present in air and starts corrosion of metals which would became metals dull and weak strengthen.example

rusting of iron and corrosion of copper metal.

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