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Chemistry
What is the chemical formula of rust?
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Q. What is the chemical formula of rust?
Punjab PMET
Punjab PMET 2010
Electrochemistry
A
$ Fe_{2}O_{3}\cdot H_{2}O $
15%
B
$ Fe_{2}O_{3}\cdot xH_{2}O $
75%
C
$ Fe_{2}O_{3} $
8%
D
None of the above
2%
Solution:
The chemical formula of rust is $ Fe_{2}O_{3}\cdot xH_{2}O $