In which pair of ions both the species contain bond?

Question

In which pair of ions both the species contain  bond?

Canvas Classes · Accepted Answer

🧠 The Sulfur Bridge
Oxoacids of sulfur can be a structural maze. We are looking for "Sulfur-Sulfur" bonds (thionic bonds). This happens when the oxidation state logic forces sulfur atoms to link together rather than just through oxygen.

🗺️ The Structural Audit
1.  (Thiosulfate): This is structurally like Sulfate where one Oxygen is replaced by a Sulfur.
   - Bond: One terminal Sulfur is -bonded to the central Sulfur. (Has  bond).
2.  (Tetrathionate): It consists of a chain of four Sulfur atom

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