Question

For the reaction shown below

the oxidation states of Mn in P and Q, respectively, are

• A. +1 and +1
• B. 1 and +1
• C. −1 and −1
• D. +1 and −1

Answer 1

The Correct Option is B

To determine the oxidation states of manganese (Mn) in the compounds P and Q:

1. In compound P, Na[Mn(CO)₅] :
   • In the Na[Mn(CO)₅] complex, carbon monoxide (CO) is a neutral ligand, and sodium (Na) is Na⁺.
   • Since the overall charge of the complex is neutral, the oxidation state of Mn must be +1.
2. In compound Q, [CH₃Mn(CO)₅] :
   • The methyl group (CH₃) is also neutral, and the CO ligands remain neutral.
   • The oxidation state of Mn in this complex must be +1, as the overall charge of the complex is zero.

Thus, the oxidation states of Mn in P and Q are +1 and +1, respectively