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Iron becomes passive bydue to formation ...

Iron becomes passive by______due to formation of ______.

A

dil. HCl , `Fe_2O_3`

B

80% conc. `HNO_3 , Fe_3O_4`

C

conc. `H_2SO_4 , Fe_3O_4`

D

conc. HCl , `Fe_3O_4`

Text Solution

Verified by Experts

The correct Answer is:
B
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