Question:
Which substance is commonly used titrant in iodometric titrations?
Which substance is commonly used titrant in iodometric titrations?
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Sodium thiosulfate is the standard titrant in iodometric titrations, reducing I\textsubscript{2} to I\textsuperscript{–}.
Updated On: Jun 16, 2025
- Potassium iodide
- Sodium thiosulfate
- Iodine solution
- Potassium permanganate
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The Correct Option is B
Solution and Explanation
In iodometric titrations, iodine is produced during the reaction and then titrated with a standard solution of sodium thiosulfate. Sodium thiosulfate acts as the titrant because it reduces iodine back to iodide ions.
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