Question

Iron filings and sulphur powder were mined together and divided into two parts A and B. Paut A is heated strongly while part B is not heated. Identify the substance formed in both and write Chemical equation

Answer 1

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When iron mixed with sulphur and heated then it forms Ferrous sulphide (A) which on treatment with dilute HCl produces Ferrous chloride and Hydrogen sulphide gas. FeS + HCl →FeCl₂ + H₂S↑ If the mixture is not heated (B) remains as mixture (Fe + S) if it treated with dilute HCl then it produces Hydrogen gas along with Ferrous chloride . Since only iron reacts (Slowly) with HCl. (Fe + S) +2 HCl → FeCl₂ + H₂....

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Answer 2

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