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  9. Q15

CGPSC 2011 · Question 15 of 146

Galvanised iron is coated with

Metals and Alloys

  1. AAluminium
  2. BGalena
  3. CSilver
  4. DZincCorrect

Answer: D. Zinc

Explanation

Galvanisation coats iron or steel with a protective layer of zinc, which corrodes sacrificially to prevent rusting.

Source: CGPSC PCS Prelims 2011 GS Paper, solved paper via iasexamportal.com

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