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Question

Write, with the balanced chemical equation, what happens when dilute sulfuric acid is added to ferrous sulfide.

WBBSE Class X Physical Science Inorganic Chemistry 2 2023 2024

Answer

When dilute sulfuric acid (H2SO4) is added to ferrous sulfide (FeS), a chemical reaction occurs, producing hydrogen sulfide gas (H2S) which has a characteristic rotten egg smell and ferrous sulfate (FeSO4).

Balanced Chemical Equation:

FeS + H2SO4 ​ →FeSO4 ​ + H2S

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