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Which metal is used in the galvanisation of iron in order to prevent it from rusting?(a) Zinc(b) Sodium(c) Copper(d) SilverI got this question in final exam.This interesting question is from Ferrous Metals in chapter Air Conditioning, Thermal Insulation, Stones & Ferrous Metals of Construction & Building Materials

Answer»

Correct OPTION is (a) Zinc

For explanation: Zinc is USED in the GALVANISATION of iron in order to PREVENT it from rusting. The LAYER of zinc is more reactive than iron, and hence it cuts the contact of iron with air or moisture and protects it from rusting.



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