The bond length in $CO$ is $1 .128 \overset{\circ}{A} .$ What will be the bond length of $CO$ in $Fe (CO)_{5} ?$

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

$1 .158 \overset{\circ}{A}$

$1.128 \overset{\circ}{A}$

$1 .108 \overset{\circ}{A}$

$1 .118 \overset{\circ}{A}$

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Synergic bonding is generally observed in coordination compounds, where there is transfer of electrons from filled orbitals of metals to anti-binding of ligands. This strengthens the bond between metal and ligand. In Fe(CO)₅, there is synergic bonding between Fe and CO, this increases the bond length between C=O, thereby bond order of C=O decreases. Among given options, only $1.158 \overset{\circ}{A}$ is greater than the given bond length value of CO, $1.128 \overset{\circ}{A} .$