Question

what is rust of iron?

Answer 1

Heya....

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Rusting Of iron it means that,

When Iron is exposed to moist atmosphere for a long time,

It Reacts with Oxygen and forms Ferric Oxide...

This forms on layer of Fe 

Hence, This is rust....

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Hope This helps.....

Thanks....

:-)

Answer 2

Answer:

Rust is an iron oxide, a usually reddish brown oxide formed by the reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances.