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Which would have max absorptivity mn04- or cocl42-. Are you sure

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MnO4- would have higher absorptivity. The intense color of permanganate ion (MnO4-) arises from the charge transfer transition from the oxygen 2p orbitals to the empty d orbitals of manganese. This transition involves a significant change in electron configuration, leading to a strong absorption of light in the visible region, giving it a characteristic purple color. CoCl42-, on the other hand, exhibits weaker absorption due to less significant charge transfer transitions.

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