Question:

What causes corrosion of iron?

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Rusting needs oxygen and water; acids accelerate corrosion.
Updated On: May 1, 2025
  • Exposure to sunlight
  • Reaction with oxygen and moisture
  • Contact with acids
  • Both (2) and (3)
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The Correct Option is D

Solution and Explanation

Step 1: Recall the conditions for iron corrosion.
Corrosion of iron (rusting) requires the presence of oxygen and water.
Step 2: Consider the effect of acids.
Acids react with iron, causing corrosion.
Step 3: Evaluate the options.
Both reaction with oxygen and moisture, and contact with acids, lead to iron corrosion.
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