In polythionic acid, to the oxidation state(s) of sulphur is/are:

Question

In polythionic acid,   to  the oxidation state(s) of sulphur is/are:

Canvas Classes · Accepted Answer

Step 1 — Structure of polythionic acids :

Polythionic acids have the general structure:

The two terminal S atoms are bonded to oxygen (like in ), while the middle  S atoms form a chain with no oxygen.

Step 2 — Oxidation states:

- Terminal S atoms (bonded to O): Each terminal S is in a  group. In :  (considering the S-S bond contributes 0) → effectively

- Middle S atoms (in S–S chain, no oxygen): These S atoms have oxidation state = 0 (similar to elemental sulfur)

Step 3 — Conclusion:
Pol

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