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Coordination Compounds
Question
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The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where en is ethylenediamine) is 

  • 9

  • 6

  • 7

  • 8

Answer

B.

6

Given complex compound is [M(en)2(C2O4)]Cl
Let oxidation number of M is x
therefore,   x- 2 - 2 = -1
 x = +3
Now, as coordination number is defined as the total number of binding sites attached to the metal.Hence, in the given complex coordination number is 6.

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