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Consider the following ligands NH(2)^(-)...

Consider the following ligands `NH_(2)^(-),` acac, `OH^(-)`, Gly, `O_(2)^(-)`, Phen, DMG, `NO_(2)^(-),CO_(3)^(2-),Cl^(-),CH_(3)COO^(-),en,SO_(4)^(2-)`. Then calculate vlaue of "P+Q-R-S" here
P: total number of ligands which act as bridging as well as monodentate only.
Q: Total number of flexidentate ligands.
R: Total number of bidentate ligands only
S: Total number of unsymmetrical bidentate ligands.

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