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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. What is the oxidation state of cobalt Co in [CoBr(NH3)5]SO4

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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 molecules are required to make an octahedral complexd wi...

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

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  8. How many ions are produced from [Co(NH3)5 Cl]Cl2 in solution ?

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  9. How many ions are produced from [Ag(NH3)2]Cl in solution ?

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  10. How many ions are produced from [Pt(NH3)2 Cl2]Br in solution ?

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  11. How many ions are produced from [Pt(NH3)3 Cl3]Cl in solution ?

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  12. The oxidation number of Ti is in following coordination compound [TiF6...

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  13. Find the oxidation number of Ni [Ni(CN)3 Cl]^(2-)

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  14. Find the oxidation number of cobalt in K[Co(CO)3 NH3]

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  15. Find the oxidation number of Pd in [Pd(ONO)2I2(H2O]

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  16. Find the oxidation number of Ni in K4[Ni(CN)4 ]

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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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