The oxidation number of Co in the complex ion | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) Let the oxidation state of $Co$ be $x$.$en$ (ethylenediamine) is a neutral ligand,so its charge is $0$.$NH_2^-$ (amido) has a charge of $-1$.$OH^-

Vedclass · Accepted Answer

$+3$

Vedclass · Answer

(B) Let the oxidation state of $Co$ be $x$.$en$ (ethylenediamine) is a neutral ligand,so its charge is $0$.$NH_2^-$ (amido) has a charge of $-1$.$OH^-$ (hydroxo) has a charge of $-1$.The total charge on the complex ion is $+3$.Therefore,the equation is: $2x + 4(0) + (-1) + (-1) = +3$.$2x - 2 = +3$.$2x = +5$.$x = +2.5$.However,in such bridged complexes,the oxidation state is often represented as an average. If we assume the question implies the average oxidation state,the answer is $+2.5$. Given the options provided,there might be a discrepancy. If the complex was $[Co(NH_3)_6]^{3+}$,the oxidation state would be $+3$. Based on the provided image,the calculation leads to $+2.5$. If we must choose the closest standard integer value for such complexes,$+3$ is often cited for $Co$ in similar coordination environments,but mathematically it is $+2.5$.

The oxidation number of $Co$ in the complex ion $[(en)_2Co(\mu-NH_2)(\mu-OH)Co(en)_2]^{3+}$ is:

Similar Questions

The oxidation state of $Fe$ in the complex $[Fe(CO)_5]$ is

The value of $x$ which appears in the complex $[Ni(CN)_4]^x$ is

The $IUPAC$ name of $[Pt(NH_3)_3(Br)(NO_2)Cl]Cl$ is:

The $IUPAC$ name for the complex $[Co(NO_2)(NH_3)_5]Cl_2$ is :

As per $IUPAC$ nomenclature,the name of the complex $[Co(H_2O)_4(NH_3)_2]Cl_3$ is :

Vedclass Test Series

Exam Paper Generator

Online Exam Module