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Which of the following cannot give iodometric titrations?A. (a)`Fe^(3+)`B. (b)`Cu^(3+)`C. (c )`Pb^(2+)`D. (d)`Ag^(+)` |
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Answer» Correct Answer - C Atom in highest oxidation state can oxidize iodide to liberate `I_(2)` which is volumetrically measured by iodometric titration using hypo. `2I^(-) rarr I_(2)` `Pb^(+2)` Lowest oxidation state cannot oxidise iodide to `I_(2)`. |
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