Question

when dilute sulphuric acid aded to piece of iron sulphide hydrogen gas is produced and soluble ferrous sulphate is formed .the type of reaction is ---------​

Answer 1

Iron sulfide reacts with hydrochloric acid, releasing hydrogen sulfide:

FeS + 2 HCl → FeCl2 + H2S.

In moist air, iron sulfides oxidize to hydrated ferrous sulfate.

Chemical formula: FeS.

Main hazards: Source of hydrogen sulfide, can be pyrophoric.

Solubility: reacts in acid.

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