Question

If EAN of central metal cation $M^{2+}$ in a non-chelating complex is $36$ and atomic no. of metal $M$ is $26$, then the number of monodentate ligand in this complex are

• A. $5$
• B. $4$
• C. $6$
• D. $3$

Answer 1

The correct option is C $6$

$EAN=Z-X+Y$
Z $=$ Atomic number of the metal
X $=$ Number of electrons lost during the formation of the metal ion from its atom
Y $=$ Number of electrons donated by the ligands
$EAN=Z-X+Y$
$36=26-2+Y$
$Y=12$
Hence, the number of monodentate ligand in this complex are $\frac{12}{2}=6.$