A solution of which substance can best be used as both a titrant and its own indicator in an oxidation-reduction titration?

(a) I<sub>2</sub>(b) NaOCl (c) K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub>(d) KMnO<sub>4</sub>

时间:2023-01-19 17:37:11

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