Question

Give reason-Heating a platinum wire is a reversible change but,heating a magnesium wire is a irreversible change.​

Answer 1

Answer: Platinum is a very unreactive metal which means that it doesn't very easily react with oxygen. On the contrary, Magnesium reacts very easily with oxygen which is the reason that it burns easily upon heating whereas, Platinum doesn't.

Answer 2

Answer:

platinum expands and does not go under chemical reaction while magnesium goes under chemical reaction to form magnesium oxide

Explanation:

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