Question

What is tarnishing of silver??

Answer 1

Answer:

Tarnish is a thin layer of corrosion that forms over copper, brass, silver, aluminum, magnesium, neodymium and other similar metals as their outermost layer undergoes a chemical reaction. ... It often appears as a dull, gray or black film or coating over metal.

Answer 2

Answer:

When silver is exposed to sulfur-containing gases in the air, it discolours and then darkens as it reacts with the gas to form a surface layer of tarnish. This process is called tarnishing

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