The difference in oxidation state of chromium in chromate and dichromate salts is ____________.
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Correct Answer: 0
Solution and Explanation
Dichromate \(\mathrm{Cr_2O_7^{2-}}\): \(2x + 7(-2) = -2 \Rightarrow x = +6\).
Difference = \(6 - 6 = 0\).
Answer: 0
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