Which of the following cannot give iodometric titrations
A
Fe3+
B
Cu2+
C
Pb2+
D
Ag+
Answer:
The correct option is C. Pb2+
Note
Atom in highest oxidation state can oxidize iodide to liberate I2 which is volumetrically measured by iodometric titration using hypo.
2I– →I2
Pb+2 → Lowest oxidation state cannot oxidise iodide to I2