Multiple choice general knowledge science & technology

Galvanised iron sheets have a coating of

  1. lead

  2. chromium

  3. zinc

  4. tin

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

Galvanization involves coating iron or steel with a thin layer of zinc, which protects the base metal from rusting. The zinc coating acts both as a physical barrier and provides sacrificial protection.