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The reason for greater range of oxidatio...

The reason for greater range of oxidation state in actinoids is attributed to:

A

the radioactive number of actinoids

B

actinoid contraction

C

5f,6d and 7s levels having comparable energies

D

4f and 5d levels being close in energies

Text Solution

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The greater range of oxidation states shown by actinoids is due to 5f,6d and 7s levels having comparable energies and thus all their electrons can take part in bond formation.
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The reason for the greater range of oxidation states of actinoids is attributed to

How would you account for the following : (i) Many of the transition elements are virtually the same as those of the corresponding members of the second series. (iii) There is a greater range of oxidation states among the actinoids than among the lanthanoids.

(a) When a chromite ore (A) is fused with an aqueous solution of sodium carbonate in free excess of air, a yellow solution of compound (B) is obtained. This solution is filtered and acidified with sulphuric acid to form compound (C). Compound (C) on treatment with solution of KCl gives orange crystals of compound (D). Write the chemical formulae of compounds A to D. (b) Describe the cause of the following variations with reSQPect to lanthanoids and actinoids: (i) Greater range of oxidation states of actinoids as compared to lanthanoids. (ii) Greater actinoid contraction as compared to lanthanoid contraction. (iii) Lower ionisation enthalpy of early actinoids as compared to the early lanthanoids.

There is a greater range of variable oxidation states among the actinoids than among the lanthanoids, Why ?

Which element show highest oxidation state in actinoid

The main reason for larger number of oxidation states exhibited by the actinoids than the corresponding lanthanoids, is :-

PRADEEP-D- AND F-BLOCK ELEMENTS-COMPETITIONS FOCUS
  1. Among the following pairs the maximum, oxidation states is shown by

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  2. The actinoids exhibit more number of oxidation states in general than ...

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  3. The reason for greater range of oxidation state in actinoids is attrib...

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  4. Reason of lanthanoid contraction is

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  5. Which one of the following statements related to lanthanons is incorre...

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  6. All Cu(II) halides are known except the iodide. The reason for it is t...

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  7. In nitroprusside ion, the iron and NO exist as Fe(II) and NO^(+) rathe...

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  8. A red solid is insoluble in water. However, it becomes soluble if some...

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  9. [Fe(H(2)O)(5)NO]^(2+) is a complex formed during the brown ring test f...

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  10. WhenHg(2)Cl(2) ionizes, the ins produced and the unpaired electrons pr...

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  11. Prussian blue is -

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  12. Which one of the following reactions involves disproportionation ?

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  13. Pick out the correct statements from the following 1. Cobalt (III) ...

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  14. Which out of the following belong to 3d-series?

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  15. Transition elements have greater tendency to form complexes because

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  16. The colour of the transition metal ions is due to

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  17. Which of the following show oxidation state of +4 ?

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  18. Potassium manganate (K(2)MnO(4)) is formed when:

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  19. Which of the following statement(s) is (are) correct with reference to...

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  20. Which of the following statement(s) is/are correct when a mixture of N...

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