General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 21)
21.
When an iron nail gets rusted, iron oxide is formed
Discussion:
38 comments Page 4 of 4.
Anil kandel said:
1 decade ago
Fe + O2... Fe2O3. We can see that iron reacts with atmospheric air to form iron oxide, called rust. Hence weight is increase.
Akhila uppuluri said:
1 decade ago
Because during the formation of rust iron reacts with oxygen&hence the weight increases.
Vinay said:
1 decade ago
Due to rusting there will be formation of iron oxide on the surface of iron nail and it will desentigrate so weight should be loss.
Sachin g said:
1 decade ago
Rust is surplus add to the iron nail that increase its weight.
Santoshi said:
1 decade ago
But I heard that during rusting, rust eats up iron from inside that is why iron breaks after a period of time due to rust. Then how is it possible that its weight increases.
H Surya Shashank Sekhar said:
1 decade ago
Iron is in its purest form is of a certain weight, but when oxygen gets added in it, iron gets additional weight.
SAHIL SAINI said:
1 decade ago
Its right that rust is formed but since rust is not stable as a layer on the iron nail so slowly rust fall off the nail eventually lost in the weight.
There is an example that when same thing happen with aluminium the rust on (aluminium rust) act as protective layer because it is stable on aluminium so it does not fall and weight increases.
There is an example that when same thing happen with aluminium the rust on (aluminium rust) act as protective layer because it is stable on aluminium so it does not fall and weight increases.
Harihara sudhan said:
1 decade ago
Molecular weight of iron oxide is greater than the atomic weight of iron.
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