Question

It is said that rubbing sand paper on iron or any metal which has rust can be removed by this. But by rubbing does that part of iron also gets removed with the rust or only the rust gets removed by the sand paper

Answer 1

Dear Student,

Rust is apparently a hydrated form of iron(III)oxide. The formula is Fe₂O₃•xH₂O. Rust is formed when the iron is exposed to air and moisture for a long time. Removing rust will result in loss of some amount of iron metal, because rust itself is oxidised form of iron. To be noted, the metal would weigh lesser than the original weight of fresh metal after removal of rust, may it be done through any methods.

Regards!
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