Question:
Identify oxidant in following reaction.
\[ 3\text{H}_3\text{AsO}_{3(aq)} + \text{BrO}^-_{3(aq)} \longrightarrow \text{Br}^-_{(aq)} + 3\text{H}_3\text{AsO}_{4(aq)} \]
Identify oxidant in following reaction.
\[ 3\text{H}_3\text{AsO}_{3(aq)} + \text{BrO}^-_{3(aq)} \longrightarrow \text{Br}^-_{(aq)} + 3\text{H}_3\text{AsO}_{4(aq)} \]
\[ 3\text{H}_3\text{AsO}_{3(aq)} + \text{BrO}^-_{3(aq)} \longrightarrow \text{Br}^-_{(aq)} + 3\text{H}_3\text{AsO}_{4(aq)} \]
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Oxidant: Gains electrons (gets reduced).
Updated On: May 4, 2026
- \(\text{Br}^-\)
- \(\text{H}_3\text{AsO}_3\)
- \(\text{H}_3\text{AsO}_4\)
- \(\text{BrO}_3^-\)
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The Correct Option is D
Solution and Explanation
Concept:
Oxidizing agent = substance which gets reduced.
Step 1: Check oxidation states
• As in \(H_3AsO_3\) → +3
• As in \(H_3AsO_4\) → +5 (oxidation)
• Br in \(BrO_3^-\) → +5
• Br in \(Br^-\) → -1 (reduction)
Step 2: Identify oxidant \[ BrO_3^- \rightarrow Br^- \quad (\text{reduction}) \] Conclusion: \[ \text{Oxidizing agent = } BrO_3^- \]
Step 1: Check oxidation states
• As in \(H_3AsO_3\) → +3
• As in \(H_3AsO_4\) → +5 (oxidation)
• Br in \(BrO_3^-\) → +5
• Br in \(Br^-\) → -1 (reduction)
Step 2: Identify oxidant \[ BrO_3^- \rightarrow Br^- \quad (\text{reduction}) \] Conclusion: \[ \text{Oxidizing agent = } BrO_3^- \]
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