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The number of d-electrons retained in Fe...

The number of d-electrons retained in `Fe^(2+)` (At. No. Fe=26)` ions are:

A

3

B

4

C

5

D

6

Text Solution

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The correct Answer is:
D
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 3
  1. The atomic number of V,Cr, Mn and Fe are respectively 23,24,25 and 26....

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  2. Which of the following group of transition metals is called coinage me...

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  3. The number of d-electrons retained in Fe^(2+) (At. No. Fe=26) ions are...

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  4. Ammonia forms the complex [Cu(NH3)4]^(2+) with copper ions in alkaline...

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  5. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

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  6. Cerium (Z= 58) is an important nember of the lanthanoids . Which of th...

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  7. The lanthanide contraction is responsible for the fact that

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  8. Which of the following factors may be regarded as the main cause of la...

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  9. The spin-only magnetic moment [in units of Bohr magneton, (mu(B) of Ni...

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  10. lanthanoid contraction is caused due to:

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  11. Identify the incorrect statement among the following.

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  12. The actinoids exhibit, more member of oxidation states in general than...

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  13. Larger number of oxidation state are exhibited by the actinoids than t...

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  14. In context with the transition elements, which of the following statem...

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  15. Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 ...

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  16. The correct order of E(M^(2+)//M)^(@) Values with negative sign for th...

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  17. In context of the lanthanoids, which of the following statements is no...

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  18. The outer electrons configuration of Lu (Atomic No.,71) is :

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  19. Iron exhibits +2 and +3 oxidation states. Which of the following state...

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  20. Which one of the following arrangements does not represent the correct...

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