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Vitamine B12 contains...

Vitamine `B_12` contains

A

magnesium

B

cobalt

C

iron

D

nickel.

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MODERN PUBLICATION-COORDINATION COMPOUNDS-EXERCISE
  1. [Co(NH3)5 Br]SO4 and [Co(NH3)5 SO4] Br are examples of which type of ...

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  2. The colour of tetraamminecopper (II) sulphate is:

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  3. Vitamine B12 contains

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  4. In which of the following the magnetic character is not correct ?

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  5. Wilkinson’s catalyst used as a homogeneous catalyst in the hydrogenati...

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  6. How many EDTA (ethylenediaminetetraacetic acid) molecules are required...

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  7. Which of the following is not true for CoF6^(3-) ?

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  8. Which of the following complexes is non-conducting ?

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  9. Which compound is formed when excess of KCN is added to an aqueous sol...

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  10. Which of the following ligand has lowest Delta0 value ?

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  11. Which of the following ligand is a strong field ligand ?

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  12. The colour of [TiF6]^(3-) (aq) is

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  13. Which of the following statement is not correct ?

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  14. Which of the following pairs contain only tetrahedral complexes ?

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  15. The number of possible geometrical isomers for the complex [Pt(NO2)(py...

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  16. Which of the following description of hybridisation is not correct ?

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  17. Which of the following is expected to be a paramagnetic complex ?

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  18. The oxidation number of cobalt in K[Co(CO)4] is

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  19. Which of the following is paramagnetic ?

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  20. The oxidation state of Fe in the brown ring complex [Fe(H2O5)NO]SO4 is

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