SATHEE: Coordination Compounds

Coordination Compounds - Result Question 4

####4. The sum of coordination number and oxidation number of the metal $M$ in the complex $[M (e n)_{2} (C_{2} O_{4})] C l$ (where $e n$ is ethylenediamine) is:

(a) 9

(b) 6

(d) 8 [2015 RS]

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Solution:

(a) $[M (en)_{2} (C_{2} O_{4})] C l$

$C_{2} O_{4} =$ bidentate ligand, carry -2 charge

en $=$ bidentate ligand, carry 0 charge

$∴$ Mcarry +3 charge; coordination number $= 6$

$∴$ Sum $= + 3 + 6 = 9$

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Coordination Compounds - Result Question 4

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