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The number of d-electron retained in Fe^...

The number of d-electron retained in `Fe^(2) ("At no. of" Fe =26)` ion is.

A

6

B

3

C

4

D

5

Text Solution

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The correct Answer is:
A
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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-J-MAIN EXERCISE
  1. Which one of the following groups represent a collection of isolectron...

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  2. The number of d-electron retained in Fe^(2) ("At no. of" Fe =26) ion ...

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  3. According to the Periodic Law of elements, the Variation in properties...

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  4. The atomic numbers of vandium (V). Chromium (Cr), manganese (Mn) and i...

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  5. Which of the following sets of quantum numbers is correct for an elect...

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  6. Consider the ground state Cr atom (Z = 24). The number of electron w...

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  7. Which one of the following sets of ions represents the collection of i...

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  8. Among Al(2)O(3),SiO(2),P(2)O(5) and SO(3) the correct order of acid st...

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  9. The formation of the oxide ion O((g))^(2-) requires first an exothermi...

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  10. In a multi-electron alom, which of the following orbitals described by...

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  11. Of the following sets which one does not contain isoclectronic species...

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  12. Which of the following statement is correct in relation to the hydroge...

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  13. In which of the following arrangements the order is NOT according to t...

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  14. Which of the following oxides is amphoteric in nature?

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

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  16. Which one of the following sets of ions represents a collection of iso...

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  17. The increasing order of the first ionization enthalpies of the element...

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  18. Which of the following sets of quantum numbers represents the highest ...

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  19. Which one of the following constitutes a group of the isoelectronic sp...

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  20. The set representing the correct order of ionic radius is

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