What is the charge on the complex `[Cr(C_(2)O_(4))_(2)(H_(2)O)_(2)]` formed by Cr(III) ?

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What is the charge on the complex `[Cr(C_(2)O_(4))_(2)(H_(2)O)_(2)]` formed by Cr(III) ? A. `+3` B. `+1` C. `+2` D. `-1`

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