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Why is the structure of H2S2O5 unsymmetrical and not symmetrical..?Also if there is a S-S linkage then why is there no term like `THIO` included in its name?

Why is the structure of H2S2O5 unsymmetrical and not symmetrical..?Also if there is a S-S linkage then why is there no term like `THIO` included in its name?

Grade:12

2 Answers

Sakshi
askIITians Faculty 652 Points
5 years ago
see the structure is unsymmetrical according top the below diagram496-1783_Capture.PNG
Amogh Dabholkar
41 Points
5 years ago
I understand that. But why don’t we consider the symmetrical structure?
Because in the Maharashtra HSC board textbook it is given as symmetrical sturcture(the one with +4 on both sulpurs with a S-O-S linkage.) This even justifies its name i.e. “PYRO”

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