Which of the following metals in not used for coating of the base metal to guard it against corrosion ?
Correct answer: C. Magnesium
- A. Lead
- B. Cadmium
- C. Magnesium
- D. Aluminium
Explanation
Aluminium, lead, and cadmium are used as protective coating metals in suitable applications. Magnesium is highly reactive and is not normally used as a conventional protective coating for base metals.
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