1. Write this Activity in Practical Record To Prepare (i) A Mixture (ii) A Compound Using Sulfur powder and Iron Fillings and Distinguish between them on the Basis of Appearance, Behavior towards Magnet, Behavior towards Carbon di Sulfide and Effect of Heat .
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Explanation:
Addition of carbon disulphide to a mixture containing iron fillings and sulphur powder, leads to formation of a clear yellow solution when sulphur powder dissolves in carbon disulphide, on gentle shaking. Iron fillings being insoluble settle in the bottom
When iron filings and sulphur powder are mixed and heated they undergo a chemical reaction and form ferrous sulphide (FeS). It is a new substance which has properties entirely different from Fe and S. Therefore, heating of mixture of iron and sulphur powder is a chemical change.
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