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A metal ion from the first transition se...

A metal ion from the first transition series has a magnitic moment (calculated) or `3.87 B.M.` How man unparied electrons are expected to be present in the ion?

A

`1`

B

2`

C

`3`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
C
`3.87=sqrt(n(n+2)),n="numberof unpaired electrons .So" n=3`
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-I PART-II
  1. Which of the following has the maximum number of unpaired d-electron?

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  2. The highest magnetic moments is shown by the transition metal ion wit...

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  3. A metal ion from the first transition series has a magnitic moment (ca...

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  4. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

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  5. The magnetic moment of .25Mn in ionic state is sqrt(15)B.M, then Mn is...

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  6. which of the following group of ion is paramagnetic in nature:

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  7. The colour of transition metal ion is attributed to:

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  8. Which one of the ionic species will impart colour to an aqueous soluti...

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  9. MnO(4)^(-) is of intense pink colour, though Mn is in(+7) oxidation st...

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  10. The yellow colour of chromates changes to orange on acidification due ...

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  11. CuSO(4).5H(2)O is blue in colour because

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  12. whih of the following ions gives(s) coloured aqeous solution?

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  13. The catalytic activity of the transition metals and their compound is ...

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  14. Cementite is:

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  15. which forms interstitial compounds?

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  16. Which of the following statement is/are correct?

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  17. KmnO(4) is the oxo salt of :

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  18. When K(4)[Fe(CN)(6)] is added to FeCl(3) , the complex compound formed...

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  19. FeCl(3).6H(2)O is actually:

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  20. A compound is yellow when hot and white when cold. The compound is:

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