Which of the following statements regarding the structural oxidation states of the tetrathionate ion — Redox Reactions and Volumetric Analysis Chemistry Question
Question
Which of the following statements regarding the structural oxidation states of the tetrathionate ion ($S_4O_6^{2-}$) are true?
Answer: A,B,C
💡 Solution & Explanation
The average O.S. is calculated as $(4x - 12 = -2 \Rightarrow x = 2.5)$. Structurally, it is $^-O_3S-S-S-SO_3^-$. The central S atoms are bonded only to identical S atoms (O.S. = 0). The terminal S atoms are bonded to three highly electronegative O atoms (O.S. = +5). Thus, D is false.
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