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Corrosion Engineering MCQs
Which of the following is not true about noble metals?
8. Which of the following is not true about noble metals?
- Nobel metals have a low electron-loss propensity
- In the presence of most corrosive substances, Nobel metals become unstable
- Noble metals have the greatest corrosion resistance
- They are very inert and corrosion-resistant
Answer: B) In the presence of most corrosive substances, Nobel metals become unstable.
Explanation:
Nobel metals are resistant to the majority of corrosive chemicals.