Question

why do iron articals get destroyed on exposure to humid environment

Answer 1

This is because iron reacts with air & moisture present in the atmosphere which causes it to rust.

Answer 2

Answer:

Iron gets reacted with environmental air and moisture which causes the iron articles to get oxidized leading to the formation of rust.

Explanation:

There are many articles which when kept exposed to the environment gets rusted. Rust is basically a hydrated oxide of iron with reddish brown appearance. Iron items can be saved from it with the help of galvanisation, electrolysis, oiling, treating with some acid or keeping the article away from moisture.