Multiple choice

The metal chiefly used for galvanizing iron is

  1. zinc

  2. mercury

  3. cadmium

  4. tin

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Zinc is the primary metal used for galvanizing iron because it forms a protective oxide layer that prevents corrosion through sacrificial protection. Mercury, cadmium, and tin are used in other plating processes but not galvanization.