Question

when ram has placed on iron bar in open he notice that the reddish brown layer appears on the iron bar​

Answer 1

rusting :is the process in which the iron(Fe) react with water molecule and form redish layer of rust

Answer 2

Answer:The reddish brown colour layer is called rust

Explanation:

Corrosion is the slow eating away of metal .

and rust is the corrosion of iron

Rusting of iron takes place when the iron comes in contact with humidity( water and air)

this can be prevented by adding a layer of paint or oil so that the iron does not come in contact with water or air(oxygen)