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Which is not true about metal carbonyls?...

Which is not true about metal carbonyls?

A

Here CO acts as a Lewis base as well Lewis acid

B

here metal acts as lewis base as well as lewis acid

C

here `d pi- p pi` back bonding takes place

D

Here `p pi-p pi` ack bonding takes place

Text Solution

Verified by Experts

The correct Answer is:
D
CO is called `pi`-acid ligand. In metal carbonyl complexes, there is donation of an element pair from carbon to the empty orbital of metal and thee simultaneously a back `pi`-bonding is formed by sideways overlap of a filled orbital on the metal with empty antibonding `pi_(2py)^(**)` orbital of CO.
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VK JAISWAL-CO-ORDINATION COMPOUNDS-LEVEL 1
  1. Which statement about coordination number of a cation is true?

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  2. In the Iso-electronic series of metal carbonyls, the C-O bond strength...

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  3. Which is not true about metal carbonyls?

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  4. There are four complexes of Ni. Select the complex(es) which will be a...

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  5. Which of the following complex is an outer orbital complex?

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  6. Which of the following complex is an outer orbital complex?

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  7. The magnetic moment of [MnX(4)]^(2-) is 5.9 BM. The geometry of the co...

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  8. The geometry of [Ni(CO)(4)] and [NiCl(2)(PPh(3))(2)] are :

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  9. [Fe(H(2)O)(6)]^(2+) and [Fe(CN)(6)]^(4-)differ in :

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  10. Which of the following order is correct in spectrochemical series of l...

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  11. The species with spin only magnetic moment of sqrt(24) BM is:

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  12. For the complexes showing the square pyramidal structure, the d-orbita...

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  13. Which of the following aquated metal ions has the highest paramagnetis...

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  14. The hybridization states of the central atom in the complexes [Fe(CN)(...

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  15. Which of the following is incorrectly matched?

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  16. Which of the follownig complexes have a maximum number of unpaired ele...

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  17. The degeneracy of d-orbitals is lost under: (I) Strong field ligand ...

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  18. The complex ion [Fe(CN)(6)]^(4-) contains:

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  19. In [Pt(NH(3))(2)Cl(2)], pt-Cl bond length is 2 Å and Cl-Cl distance is...

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  20. Which of the following isomerism, exhibited by [CrCl(2)(OH)(2)(NH(3))(...

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