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Q.
The IUPAC name of $K_3[Ir(C_2O_4)_3]$ is
MP PMTMP PMT 2001Coordination Compounds
Solution:
IUPAC name of $K_3[Ir(C_2O_4)_3]$ is potassium trioxalatoiridate (III)
Let O.S. of Ir - $x$
$\therefore $ 3(+ 1) + $x$ + 3(-2) = 0
$ x$ = + 3
[O.S. of $K^+$ = +1. O.S. of $C2^{2-}_4$ = -2]