Question

EAN of Mn in $M{n}_2(CO{)}_{10}$ is:

• A. 33
• B. 34
• C. 35
• D. 36

Answer 1

The correct option is D 36

In the given compound Atomic number of Manganese is 25 and as COCO Carbon monoxide is a neutral ligand so oxidation state of Manganese is zero.Also, the no. of electrons donated by each CO ligand is 2. Hence the,EAN = electrons of metal + electrons donated by ligands + 1 M-M delta bond.

EAN = 25+1+10=36 of each Mn atom.

Therefore option D is correct