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In which of the following compound Mn sh...

In which of the following compound Mn shoes minimum radius ?

A

`MnO_(2)`

B

`KmNo_(4)`

C

`MnO`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
2
As oxidation state of central metal ion increases, the electron to proton ratio, decreases and therefore, size of ion decreases. In `KMnO_(4),Mn` is in `+7 O.S.` So due to maximum `+ve` charge radius will be lowest.
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RESONANCE-PERIODIC TABLE & PERIODICITY-Inorganic chemistry (Periodic Table & Periodicity
  1. Whichof the following orders is correct ?

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  2. The correct order of radii is

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  3. In which of the following compound Mn shoes minimum radius ?

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  4. The ionisation energy of A(g) is similar to in terms of magnitude -

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  5. Which of the following statements is INCORRECT ?

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  6. Electron affinity is the :

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  7. If x,y and z are electronegativity, ionisation potential and electron-...

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  8. Which of the following statements is incorrect ?

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  9. If the same elements is forming oxidation in different oxidation state...

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  10. Which of the following statement is correct ?

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  11. The dominating factor responsible for the decreasing ionisation energi...

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  12. Which of the following order is not correct ?

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  13. The correct of the metallic character is :

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  14. The correct order of the non- metallic character is :

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  15. Which of the following statement is incorrect ?

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  16. Higher values of ionisation energies of the 5d-transition elements are...

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  17. The correct decreasing order of size of a isoelectronic species is -

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  18. Whichone of the following is not the representative element ?

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  19. An element of atomic mass 40 has 2,8,8,2, as the electronic configurat...

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  20. Ionic radil is // are :

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