While studying electrolysis, I came across the oxidation reaction of SO₄²⁻ where it oxidizes into S₂O₈^(2-). I don't understand why it prefers to dimerize and form S₂O₈^(2-) instead of just staying in the SO₄ state. Can someone please explain?
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1$\begingroup$ Assuming you meant $\ce{S2O8^2-}$ and not some $\ce{S2O8} (?),$ doi.org/10.1149%2F2.1161811jes should provide some insight. Not sure what reduction of sulfate ion you are talking about in title, though, and why some words are randomly capitalized. $\endgroup$– andselisk ♦Commented May 21 at 13:44
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1$\begingroup$ The ion $\ce{SO4^{2-}}$ is not reduced in this electrolysis. On the contrary, it is oxidized into $\ce{S2O8^{2-}}$. $\endgroup$– MauriceCommented May 21 at 15:37
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$\begingroup$ thank you for the correction! $\endgroup$– Advait KCommented May 22 at 3:05
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