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Iron is rendered passive by treatment wi...

Iron is rendered passive by treatment with concentrated

A

`H_(2)SO_(4)`

B

`H_(3)PO_(4)`

C

`HCl`

D

`HNO_(3)`

Text Solution

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The correct Answer is:
D
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IIT-JEE PREVIOUS YEAR (CHEMISTRY)-EXTRACTION OF METALS-JEE Main And Advanced
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  11. In the electrolysis of alumina, cryolite is added to

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