Question

average oxidation state of sulphur atoms in Thiosulphate ion​

Answer 1

Oxygen is (almost) always -2. To keep the overall charge -2, that means that the newly bonded sulfur is oxidation state +1. Oxidizing that sulfur again gives sulfurs of +3 and -1. Finally, in thiosulfate the oxidations states are +5 and -1.

Answer 2

Answer:

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