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COMEDK2016ChemistryGeneral Principles and Processes of Isolation of Metals

Stainless steel does not rust because

Options

  1. Anickel present in it, does not rust
  2. Biron forms a hard chemical compound with chromium present in it
  3. Cchromium and nickel combine with iron
  4. Dchromium forms an oxide layer and protects iron from rusting

Correct answer

D. chromium forms an oxide layer and protects iron from rusting

Step-by-step solution

Stainless steel does not rust because chromium forms an oxide layer and protects iron from rusting.

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