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d and f BLOCK ELEMENTS
Question #38741
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Question
Which of the following is an example of a high oxidation state species for Chromium?
A. Cr³⁺ in CrCl₃
B. Cr²⁺ in CrSO₄
C. Cr⁶⁺ in CrO₄²⁻
D. Cr⁰ in Cr(CO)₆
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