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      Question

      Which of the following is not classified as a noble

      metal?
      A Rhodium Correct Answer Incorrect Answer
      B Platinum Correct Answer Incorrect Answer
      C Gold Correct Answer Incorrect Answer
      D Iron Correct Answer Incorrect Answer

      Solution

      Iron is not considered a noble metal due to its susceptibility to oxidation and corrosion. Noble metals like gold, rhodium, and platinum are highly resistant to such chemical reactions.

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