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Chemistry
Chemical formula of rust is
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Q. Chemical formula of rust is
Haryana PMT
Haryana PMT 2010
A
$Fe _{2} O _{3} \cdot H _{2} O$
B
$Fe _{2} O _{3} .5 H _{2} O$
C
$Fe _{2} O _{3} \cdot x H _{2} O$
D
None of these
Solution:
The chemical formula of rust is $Fe _{2} O _{3} . x H _{2} O$