WAEC Chemistry 2018 Objective — Question 36
Question 36 of 50 from the West African Examinations Council (WAEC) Chemistry 2018 Objective paper, with the correct answer and a full explanation.
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The change in the oxidation state of iron in the reaction represented by the equation below is 2FeCl₃+H₂S→2FeCl₂+2HCl+S
- A. +2 to +3
- B. +3 to +2Correct
- C. 0 to +2
- D. +3 to 0
Explanation
Iron changes from the +3 oxidation state in FeCl₃ to the +2 state in FeCl₂.
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