Select the correct M-C bond order. | vedclass

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

Question

(B) In metal carbonyls,the extent of back-bonding from the metal to the $CO$ ligand depends on the electron density on the metal atom.As the negative

Vedclass · Accepted Answer

$[Ni(CO)_4] < [Co(CO)_4]^- < [Fe(CO)_4]^{2-}$

Vedclass · Answer

(B) In metal carbonyls,the extent of back-bonding from the metal to the $CO$ ligand depends on the electron density on the metal atom.As the negative charge on the complex increases,the electron density on the metal increases,which enhances the back-donation of electrons into the $\pi^*$ antibonding orbitals of $CO$.This increases the $M-C$ bond order and decreases the $C-O$ bond order.Therefore,the order of $M-C$ bond order is $[Ni(CO)_4] < [Co(CO)_4]^- < [Fe(CO)_4]^{2-}$.

Select the correct $M-C$ bond order.

Similar Questions

In the following reaction sequence in aqueous solution,the species $X, Y$ and $Z$,respectively,are

Which one of the following complexes is violet in colour?

$50 \, mL$ of $0.2 \, M$ solution of a compound with empirical formula $CoCl_3 \cdot 4NH_3$ on treatment with excess of $AgNO_{3(aq)}$ yields $1.435 \, g$ of $AgCl$. Ammonia is not removed by treatment with concentrated $H_2SO_4$. The formula of the compound is:

The $IR$ stretching frequencies of free $CO$ and $CO$ in $[V(CO)_6]^-$,$[Cr(CO)_6]$ and $[Mn(CO)_6]^+$ are $2143 \, cm^{-1}$,$1860 \, cm^{-1}$,$2000 \, cm^{-1}$ and $2090 \, cm^{-1}$,respectively. Then the correct statement about metal carbonyls is:

What is the color of a cobalt chloride solution?

Vedclass Test Series

Exam Paper Generator

Online Exam Module