1.

What is the coordination number of Cr in K3[Cr (Ox)3]? (a) 6 (b) 5 (c) 4 (d) 3

Answer»

Correct Answer is: (a) 6

These ligands occupy two positions around the central metal atom. There are 3 oxalate ligands, so it will occupy = (2 × 3) = 6 positions around the central metal atom. Hence, the coordination number of chromium in given complex is 6



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