 
			 
			MCQOPTIONS
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				| 1. | Which of the following complex has a highest oxidation state of metal? | 
| A. | (η<sup>6</sup>-C<sub>6</sub>H<sub>6</sub>)<sub>2</sub>Cr | 
| B. | Mn(CO)<sub>5</sub>Cl | 
| C. | Na<sub>2</sub>[Fe(CO)<sub>4</sub>] | 
| D. | K[Mn(CO)<sub>5</sub>] | 
| Answer» D. K[Mn(CO)<sub>5</sub>] | |