Sodium thiosulfate is used almost exclusively to titrate
.Which of the following is NOT true for sodium thiosulfate titrant?
A) In neutral or acidic solution,triiodide oxidizes thiosulfate to tetrathionate.
B) One mole of
Is equivalent to two moles of I2.
C) In basic solution,
Disproportionates to I− and HOI,which can oxidize
To
)
D) Sodium thiosulfate is standardized with freshly made
Solution prepared from KIO3 and KI.
E) Dissolved CO2 and metal ion catalyzed atmospheric oxidation of thiosulfate decreases the concentration of prepared thiosulfate solution.
Correct Answer:
Verified
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