Which metal is added to steel to make it stainless steel?
Correct answer: A. Chromium
- A. Chromium
- B. Aluminium
- C. Carbon
- D. Copper
Explanation
Chromium forms a thin, self-repairing oxide layer on steel, protecting it from rust and corrosion. Aluminium can also resist corrosion, but it is not the defining addition in stainless steel.
Last updated