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5. Co-ordination chemistry — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry5. Co-ordination chemistry1 Mark
MCQ
Which of the following complex has highest $C-O$ bond length ?
  • A
    $[Ni(CO)_3(PF_3)]$
  • B
    $[Ni(CO)_4]$
  • ✓
    $[Ni(CO)_3(PMe_3)]$
  • D
    None
✓

Answer

Correct option: C.
$[Ni(CO)_3(PMe_3)]$
c
In $[Ni(CO)_3(PMe_3)]$ extent of synergic bonding towards $CO$ will be maximum. So $C-O$ bond order will be minimum hence $C-O$ bond length will be maximum

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