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Doctors Medicines MCQs Q&A

  1. 400°C to 600°C
  2. 600°C to 900°C
  3. 900°C to 1400°C
  4. 1400°C to 1530°C
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1 Answers

Answer: Option 4

As molten iron cools down, it solidifies at 1,538°C (2,800°F) into its δ allotrope, which has a body-centered cubic (BCC) crystal structure. δ-iron can dissolve as much as 0.08% of carbon by mass at 1,475°C.

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