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For Galvanizing Iron which of the following Metals is used?

  • A.Zinc
  • B.Lead
  • C.Aluminium
  • D.Copper

Answer: A

Galvanised iron is coated with zinc, usually by dipping the sheet in the molten metal.

The zinc protects in two ways: it seals the surface, and being more reactive than iron it corrodes in preference even where the coating is scratched - sacrificial protection.

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