Question

The metal which  is coated  on iron to prevent it from rusting is

A Calcium.

B Chromium.

C Sodium.

D Potassium.

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Answer 1

Answer:

It is mainly zinc but it can be also chromium

Answer 2

Explanation:

HEY MATE ..

Galvanising is a method of rust prevention. The iron or steel object is coated in a thin layer of zinc. This stops oxygen and water reaching the metal underneath. As well as zinc also acts as a sacrificial metal. Zinc is more reactive than iron, so it oxidises in preference to the iron object.

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