Pure conc. HNO\(_3\) make iron passive, as the surface is covered with protective layer of
Show Hint
- Fe\(_2\)O\(_3\)
- FeO
- Fe\(_3\)O\(_4\)
- Fe(NO\(_3\))\(_3\)
The Correct Option is C
Solution and Explanation
Conc. HNO\(_3\) is a strong oxidizing agent.
Step 2: Detailed Explanation:
HNO\(_3\) forms a protective layer of Fe\(_3\)O\(_4\) on iron surface.
Step 3: Final Answer:
Layer is Fe\(_3\)O\(_4\).
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