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31 December, 22:43

What is the gas produced when iron (II) sulfide is treated with a nonoxidizing acid?

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  1. 31 December, 22:54
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    Hydrogen sulfide

    Explanation:

    A nonoxidizing acid is the acid which cannot act as oxidizing agent and thus furnish hydrogen ions. Example: HCl

    Iron (II) sulfide reacts with nonoxidizing acid, say hydrochloric acid to give rotten egg smelling gas, H₂S (Hydrogen sulfide).

    The reaction is shown below:

    FeS (s) + 2HCl (aq) ⇒ FeCl₂ (s) + H₂S (g)

    A general reaction is also shown below of the reaction of Iron (II) sulfide with any nonoxidizing acid, HX as:

    FeS (s) + 2HX (aq) ⇒ FeX₂ (s) + H₂S (g)
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