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JEE Advanced Chemistry question

ChemistryThe p-Block ElementsJEE Advanced

Which does not have (S − S) bond?

Answer: (A)

Solution

As drawn structurally, thiosulphuric acid, H2S2O3, has a central sulphur bearing two –OH groups, a terminal =O, and a terminal =S — the connection to the second sulphur being a double bond (S=S) rather than a simple single S–S bond. By contrast, H2S2O5 (disulphurous/pyrosulphurous acid) and H2S2O4 (dithionous acid)

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Question ID VK-159418