Question

Rusting of iron or mixing iron filings and sulphur powder

Answer 1

$<b>HELLO DEAR :))$


When iron filings and sulphur powderare mixed, both retain their properties. It means they have not undergone any chemical reaction.

Therefore, mixingof iron and sulphur is a physical change. When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and formferrous sulphide (FeS).

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