Determine the oxidation state of Chromium in the compound K₂Cr₂O₇.
- +3
- +6
- +7
- +4
📝 Batafsil tushuntirish
2(+1) + 2(x) + 7(-2) = 02 + 2x - 14 = 0 => 2x = 12 => x = +6.
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