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How does the ionic/covalent character of...

How does the ionic/covalent character of the compounds of a transition metal vary with its oxidation state ?

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With the increase in oxidation state, more and more electrons of the valence shell get involved in bonding. The atomic core becomes less shielded resulting in the increased attraction on the electrons. Hence, ionic character of the bonds decreases with increase in oxidation state.
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ICSE-d- AND- f- BLOCK ELEMENTS-EXERCISE (PART-II) (DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. K2 Pt Cl6 is well known compound while corresponding Ni compound is n...

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  2. Why is electronic configuration 1s^2 2s^2 2p^6 3s^2 3p^6 3d^4 4s^2 n...

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  3. How does the ionic/covalent character of the compounds of a transition...

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  4. Why do transition elements have high value of hydration enthalpy?

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  5. Why Fe^(2+) has smaller radius than Mn^(2+) ?

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  6. Why do most transition metal ions exhibit paramagnetism ?

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  7. How is the magnetic moment of a species related to the number of unpai...

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  8. The electronic configuration of Co^(2+) and Cu^(2+) is d^7 and d^(9) r...

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  9. Which of the following is paramagnetic ? Sc^(3+) (Z=21),Cu^(+)(Z=29)

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  10. Why is Ti^(2+) ion paramagnetic ?

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  11. One unpaired electron in an atom contributes a magnetic moment of 1.1 ...

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  12. Why do transition elements shows variable oxidation states?

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  13. Why are complex ions readily formed when water molecules react with th...

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  14. Arrange the following in increasing order of basic character: MnO, ...

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  15. Arrange the following in increasing order of acidic character: CrO,...

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  16. What happens when KMnO4 is heated ?

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  17. What is Baeyer's reagent ?

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  18. Why is KMnO4 kept in dark bottles ?

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  19. Why is HCl not used to acidify a permanganate solution in volumetric e...

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  20. Why is K(2)Cr(2)O7 generally preferred over Na(2)Cr(2)O(7) , in volume...

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