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Chemical Bonding and Charge Concepts
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Effective charge on each oxygen is $-\frac{1}{4}$ in?
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A
$ClO _{4}^{-}$
💡 Explanation:
In the perchlorate ion (ClO4-), there are four equivalent oxygen atoms sharing a single negative charge delocalized over the entire ion, meaning the effective charge on each oxygen atom is -1/4. In sulfite (SO3 2-), the charge per oxygen is -2/3, and in chlorate (ClO3-), it is -1/3.