Question

we prefer plastic to make water bottles over iron why

Answer 1

because iron can react with water to form an acid in side the bottle.and the bottle form rust

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Answer 2

hey..here is ur ans..

Plastic doesnt react with water ..water is safe when we keep it in plastic bottle..but keeping water in iron bottle is very dangerous..water becomes toxic bez air less water reacts with iron..so water is not kept in iron..

hope it helps