Chemistry - Redox Reactions Question with Solution | TestHub
ChemistryRedox ReactionsDetermination of Oxidation StateMedium2 minQB
ChemistryMediumstatement
Statement 1: When O₃ reacts with KI, O₃ is reduced into O₂.
Statement 2: There is no change in oxidation state of oxygen, in this reaction.
Options:
Answer:
C
Solution:
The reaction is O₃ + 2I⁻ + H₂O I₂ + O₂ + 2OH⁻. O₃ accepts 2 electrons overall, so it acts as the oxidizing agent and is itself reduced, with O₂ as one of its products - I is correct in the textbook sense. Statement II is incorrect: the oxygen atom that ends up in OH⁻ changes from -1 (in O₃) to -2, so an oxidation-state change of oxygen does occur. Hence (c).
Stream:JEESubject:ChemistryTopic:Redox ReactionsSubtopic:Determination of Oxidation State
⏱ 2mℹ️ Source: QB
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