📊 Science
Q. Which of the following causes Rusting of iron?
1. Oxidation
2. Reduction
3. Chemical reaction with oxygen
4. Chemical reaction with CO2
  • (A) 1 and 2
  • (B) 2 and 3
  • (C) 3 and 4
  • (D) 1 and 3
✅ Correct Answer: (D) 1 and 3

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