Question

dilute hcl is added to mixture of iron filings and sulphur powder why

Answer 1

Hiii......
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Here is your answer......

As part 'A' is heated, a compound FeS is formed by the reaction between iron filings and sulphur. ... When dil, HCI is added to it,iron filings react with dill. HCl to form (g) which burns with a 'pop' sound if burning match stick is brought near it.............

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Answer 2

Dilute HCl is added to iron filings and sulphur so that it reacts with each other to form Ferrous Chloride and Hydrogen sulphide.

HCl+Fe+S→FeCl+H2S