1.

The coordination number and oxidation state of \[Cr\] in \[{{K}_{3}}\left[ Cr{{\left( {{C}_{2}}{{O}_{4}} \right)}_{3}} \right]\] are, respectively [CBSE PMT 1995]

A. 4 and +2
B. 6 and +3
C. 3 and +3
D. 3 and 0
Answer» C. 3 and +3


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