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Select the complexes in which iron is in...

Select the complexes in which iron is in `+2` oxidation state ?

A

`K_(3)[Fe(CN)_(6))]`

B

`K_(4) [Fe(CN)_(6)]`

C

`Na_(2)[Fe(CN)_(5)NO]`

D

`[Fe(OH)_(2)]^(+)`

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The correct Answer is:
B, C
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FIITJEE-TRANSITION ELEMENTS & COORDINATION COMPOUNDS-ASSIGNMENT PROBLEMS (OBJECTIVE)(Level- II)
  1. A ligand having an unshared pair of electrons may be a

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  2. In which of the following the oxidation number of metal ion is zero?

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  3. Select the complexes in which iron is in +2 oxidation state ?

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  4. The compound K(3)[Co(NO(2))(6)] is called

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  5. The complex Na(2)[Fe(CN)(5)NO] is called :

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  6. The compound K(4)[Fe(CN)(6)] is called

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  7. K(4)[Fe(CN)(6)] is used in the identification of

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  8. Which of the following statements are correct regarding [Fe(H(2)O)(5)N...

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  9. Which of the following can act as catalysts ?

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  10. Which of the following are organometallic compounds?

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  11. Which of the following statements is/are correct'when a mixture of NaC...

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  12. Metallic silver can be obtained from AgCl by

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  13. When MnO(2) is fused with KOH, a coloured compound is formed then the ...

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  14. Which of the following are coloured?

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  15. Which of the following compounds give colour due to charge transfer?

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  16. Correct statements about transition metals are that they

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  17. Which of the following compounds have the oxidation number of the meta...

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  18. Which are ionic compounds?

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  19. Which of the following are not soluble in excess of NaOH?

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  20. Which of the following pairs of ions can be separated by H(2)S in dilu...

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