NDA2023General AbilityGeneral ScienceActual
Which one of the following metal is NOT an essential component in stainless steel ?
Options
- AIron
- BNickel
- CChromium
- DTin
Correct answer
D. Tin
Step-by-step solution
Stainless steel is an alloy which consist of 83% iron, 1% carbon, 15% chromium 1% nickel with carbon (C), silicon (Si) and manganese (Mn) and molybdenum. Chromium reacts with oxygen and form a layer of oxide of chromium which makes resistant to corrosion.