Chemistry · d-Block Elements
Iron is rendered passive by treatment with which of the following acids?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Dilute HNO 3
- 2Concentrated HCl
- 3Dilute H 2 SO 4
- 4Concentrated HNO 3✓
Correct answer
Concentrated HNO 3
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