1.

The rusting of iron is catalysed by

Answer»

Fe
`O_(2)`
`H^(+)`
Zn

Solution :The reaction occurring during rusting PROCESS are as FOLLOWS :
At anode: `Fe(s) to Fe^(2+)(aq) + 2e`
At cathode:
`O_(2)(g) + 4H^(+)(aq) to 2H_(2)O`
The `Fe^(2+)` ions, formed, are further oxidised by atmosphere oxygen to `Fe^(3+)` (as `Fe_(2)O_(3)`) and come as rust `(Fe_(2)O_(3).xH_(2)O)`. The `H^(+)`, formed in the rust formation, catalysed the process of rusting.


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