Chapter - 1

Chemistry 10th Standard

Title

45:30

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Hydrogen sulphide (H₂S) is a strong reducing agent. Which of the following reactions shows its reducing action

Cd(NO₃)₂ + H₂S -> CdS + 2HNO₃

CuSO₄ + H₂S -> CuS + H₂SO₄

2FeCl₃ + H₂S -> 2FeCl₂ + 2HCI + S

Pb(NO₃)₂ +H₂S -> PbS + 2CH₃COOH

2FeCl₃ + H₂S -> 2FeCl₂ + 2HCI + S N the given reaction H2 is undergoing oxidation, hence behave as reducing agent.