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The magnetic moment of .25Mn in ionic st...

The magnetic moment of `._25Mn` in ionic state is `sqrt(15)B.M`, then Mn is in:

A

`+2` state

B

`+3` state

C

`+4` state

D

`+5` state

Text Solution

Verified by Experts

The correct Answer is:
C
`sqrt(15)=sqrt(n(n+2)),n=3,"and three unpaired electrons are found when Mn is in" Mn^(4+) i.e,3d^(3)4s^(0)`
"configuration as its metal electrons configuration is "[Ar]^(18)3d^(5)4s^(2)`
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RESONANCE-D BLOCK ELEMENTS-EXERCISE-I PART-II
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  2. Magnetic moment of Cr^(+2)(Z=24),Mn^(+2)(Z=25) and Fe^(2+) (Z=26) are ...

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

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

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

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

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  13. which forms interstitial compounds?

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

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

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  19. On heating ZnXl(2).2H(2)O, the compounds obtained is:

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