Structure of sulphur oxoacids: S=O bonds, peroxo bonds and oxidation states

1. A.
   +5 only
2. B.
   +6 only
3. C.
   +3 and +5 only
4. D.
   0 and +5 only

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1. A.
   2,3 and 4
2. B.
   1,4 and 3
3. C.
   2, 4 and 3
4. D.
   1,4 and 4

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1. A.
   $H_{2}{\text{ }S}_{2}O_{3}$
2. B.
   $H_{2}{\text{ }S}_{2}O_{6}$
3. C.
   $H_{2}{\text{ }S}_{2}O_{7}$
4. D.
   $H_{2}{\text{ }S}_{2}O_{8}$

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