Question

A mixture of iron and sulphur when heated doesn't show the magnetic property of iron.

Answer 1

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HERE'S YOUR ANSWER...

When heated, iron and sulphur undergo chemical reaction and form iron sulphate. Since it is a chemical reaction, the property of previous components changed and iron loses its property.


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Answer 2

we know that separately iron and sulphur shows magnetic property. But when both are heated together physical property of both changes forming different compounds. Hence it doesn't show magnetic property.