Assertion : `HNO_(3)` makes iron passive. Reason : `HNO_(3)` forms a protective layer of ferric nitrate on the surfae of iron.
Assertion : `HNO_(3)` makes iron passive.
Reason : `HNO_(3)` forms a protective layer of ferric nitrate on the surfae of iron.
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Correct Answer - C
Correct reason : `HNO_(3)` forms a protective coating of `Fe_(2)O_(3)` on the surface of iron.
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