ISRO Mechanical & Aerospace 2012 - Question 38

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The property of corrosion resistance of chromium Stainless Steel is due to

  • A. Predominant nature of Cr
  • B. Thin film of oxygen/moisture
  • C. Formation of thin film of Cr2O3
  • D. Inherent property of Cr

Answer: C. Formation of thin film of Cr2O3

Explanation: Passive oxide layer protects the steel.

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