Question

explain how painting of iron gate prevents it from rusting?​

Answer 1

google is free

Explanation:

its better to ask google

Answer 2

Answer:

Painting on a iron gates prevents it from rusting because the paint contains oil.Oil does not allow the oxygenated air, moister and water ir rainy water or any acidic water from direct contact with iron.Thus it prevents rusting.

Formulae for rust:-

Fe2O3.xH2O