Bonding in Metal Carbonyls

Which of the following complexes has the strongest metal-carbon bond?

 Homonuclear metal carbonyls are those that have two or more than two metal centres but are of the same type.

An example of homonuclear metal carbonyl is

How the polynuclear metal carbonyls are classified on the basis of type of metals?

Write a note on the classification of metal carbonyls.

Write a short note on bonding in metal carbonyls.

The correct pair of orbitals involved in $\pi$ -bonding between metal and $\mathrm{CO}$ in metal carbonyl complexes is:

The $\mathrm{V}-\mathrm{C}$ bond distances in $\mathrm{V}(\mathrm{CO}{)}_6$ and ${\left[\mathrm{V}(\mathrm{CO}{)}_6\right]}^{-}$ are respectively $($in $\mathrm{pm})$

Which of the following is correctly matched?

The correct sequence of $\mathrm{CO}$ bond length in the given compound is:

(I) $\mathrm{Fe}{\left(\mathrm{CO}\right)}_5$

(II) $\mathrm{CO}$

(III) ${\mathrm{H}}_3\mathrm{B}\leftarrow \mathrm{CO}$

(IV) ${\left[\mathrm{Mn}{\left(\mathrm{CO}\right)}_5\right]}^{-}$

The bond length of $\mathrm{C}-\mathrm{O}$ bond in $\mathrm{CO}$ is $1.128 \mathrm{\AA }$. The $\mathrm{C}-\mathrm{O}$ bond in $\mathrm{Fe}{\left(\mathrm{CO}\right)}_5$, is-

In which compound synergic effect is present ?

In $\mathrm{Fe}(\mathrm{CO}{)}_5$, the $\mathrm{Fe}-\mathrm{C}$ bond possesses :-

In which of the following complexes, the bond order of $\mathrm{C}-\mathrm{O}$ is minimum :-

Among the following metal carbonyls, the $\mathrm{C}-\mathrm{O}$ bond order is lowest in :-

Which of following involves maximum $\mathrm{C}-\mathrm{O}$  bond length :-

The $\mathrm{V}-\mathrm{C}$ distance in $\mathrm{V}(\mathrm{CO}{)}_6$ and ${\left[\mathrm{V}(\mathrm{CO}{)}_6\right]}^{-}$ are respectively (in $\mathrm{pm}$ ) :

I) $\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_6\right]$ II) $\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_5\right({\mathrm{NH}}_3\left)\right]$ III) $\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_4{\left({\mathrm{NH}}_3\right)}_2\right]$

IV) $\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_3{\left({\mathrm{NH}}_3\right)}_3\right]$ V) $\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_2{\left({\mathrm{NH}}_3\right)}_4\right]$

VI) $\left[\mathrm{Co}\right(\mathrm{CO}\left){\left({\mathrm{NH}}_3\right)}_5\right]$

Predict the CORRECT statement for these compounds?

Correct statement for these compounds is :

(i) $\mathrm{Co}{\left(\mathrm{CO}\right)}_6$

(ii) $\mathrm{Co}{\left(\mathrm{CO}\right)}_5{\mathrm{NH}}_3$

(iii) $\mathrm{Co}{\left(\mathrm{CO}\right)}_4{\left({\mathrm{NH}}_3\right)}_2$

(iv) $\mathrm{Co}{\left(\mathrm{CO}\right)}_3{\left({\mathrm{NH}}_3\right)}_3$

(v) $\mathrm{Co}{\left(\mathrm{CO}\right)}_2{\left({\mathrm{NH}}_3\right)}_4$

(vi) $\mathrm{Co}\left(\mathrm{CO}\right){\left({\mathrm{NH}}_3\right)}_5$

The type of character the $\mathrm{Fe}-\mathrm{C}$ bond possesses in $\mathrm{Fe}(\mathrm{CO}{)}_5$ is