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Why is mixing of iron and sulphor physcal change |
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Answer» When iron filings and SULPHUR POWDER are mixed, both RETAIN their properties. It means they have not undergone any chemical reaction. THEREFORE, mixing of iron and sulphur is a physical CHANGE. When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide ( FeS ). |
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