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Magnetic moment of maganese in (NH(4))(2...

Magnetic moment of maganese in (`NH_(4))_(2) MnBr_(2)` is

A

3.87BM

B

5.91BM

C

4.89BM

D

2.82BM

Text Solution

Verified by Experts

The correct Answer is:
B
`._(25)Mn=1s^(2),2s^(2),2p^(6),3s^(2),3p^(6),4s^(2),3d^(5)`

`because` Number of unpaired electrons in `Mn^(2+)=5`
`therefore`Magnetic moment of `Mn^(2+)=sqrt(n(n+2))`
`sqrt(5(5+2))BM`
`=sqrt(35)=5.91BM`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Exercise 2 (Miscellaneous Problems)
  1. The catalytic of the transition metals and their compounds is describe...

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  2. Select the correct order of oxidising power in acidic medium.

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  3. Magnetic moment of maganese in (NH(4))(2) MnBr(2) is

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  4. Pick out the correct statements from the following. (I) Cobalt (III...

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  5. Which pair of compounds is expected to show similar colour in aqueous ...

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  6. Match the following columns.

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  7. Cr(2)O(7)^(2-)overset(pH=x)rarrCrO(4)^(2-)overset(pH=y)rarrCr(2)O(7)^(...

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  8. Consider the following statements, A. Colour of a transition metal ...

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  9. When a magnetic field is applied to substances, mainly two type of mag...

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  10. Match the properties given in Column I with the metals given in Column...

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  11. The ion Cr^(2+) is redusing agent while that of Mn^(3+) is an oxidisin...

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  12. Which of the following statement (s) is /are correct? (I) CuS is wh...

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  13. Cuprous ion is colourless, while cupric ion is colured because

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  14. The oxidation number of Mn in the product of alkaline oxidative fusion...

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  15. The 3d-metal ion are generally paramagnetic in nature because

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  16. the caculated magnetic moment of a divalent ion of an atomic number 2...

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  17. Four successive members of the first row transition elements are liste...

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  18. Among the following series of transition metal ions, the one in which ...

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  19. The colourless species is

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  20. Amongst the following, the lowest degree of paramgnetism per mole of t...

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