Q.

Correct sequence of CO bond order in given compounds is :(P) Fe(Co)5 (Q) Co (R) H3B ←CO (S) [Mn(Co)5]-

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a

P>R>S>Q

b

S>P>R>Q

c

Q>S>P>R

d

R>Q>P>S

answer is D.

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Detailed Solution

CO bond order ∝1 Extent of back bonding (M→ CO )Correct sequence of CO bond order :H3B (CO bond order >3.0 ) COB.O. =3.0COCO bond order <3.0>Fe(CO)(CO bond order <3.0 )
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Correct sequence of CO bond order in given compounds is :(P) Fe(Co)5 (Q) Co (R) H3B ←CO (S) [Mn(Co)5]-