Question

heating of platinum wire is a reversible but heating of magnesium wire is ireversible

Answer 1

Answer:

as platinum does not form oxide ,so it is reversible .

Explanation:

magnesium form magnesium oxide, as it is reactive in nature so it get react with oxygen present in air atmosphere

Answer 2

A platinum wire is a reversible change because it can be reversed but heating a magnesium wire is an irreversible change because it cannot be reversed .