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Actinoid contraction is greater from ele...

Actinoid contraction is greater from element to element than lanthanoid contraction . Why ?

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(i) Give the general electronic configuration of d-block elements, (ii) Silver atom has completely filled d-orbitals (4d^10) in its ground state. Yet, it is considered as transition element. Why? (iii) Cu^+ ion is not stable in aqueous solution. Explain. (iv) Actinoids contraction is greater from element to element than lanthanoid contraction. Why?

Actinoid contraction is greater from element to element than anthanoid contraction Why?

Give reason. (a) Cerium (Ce) exhibits +4 oxidation state.(b) Actinoid contraction is greater from element to element than lanthanoid contraction.

What is lanthanoid contraction?

Explain actinoid contraction .

PRADEEP-D- AND F-BLOCK ELEMENTS-IMPORTANT QUESTIONS
  1. Which is a stronger reducing agent Cr^(2+) or Fe^(2+) and why ?

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  2. Predict which of the following will be coloured in aqueous solution ?...

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  3. How will you account for the following : (i) Cobalt (II) is stable i...

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  4. Which of the two is paramagnetic : V (IV) or V (V) and why ?

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  5. Copper (I) compounds are white and diamagnetic while copper(II) compou...

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  6. Which divalent metal ion has maximum paramagnetic character among the ...

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  7. Transition elements have greater tendency to form complexes because

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  8. In the titratin of Fe^(2+) ions with KMnO(4) in acidic medium, why dil...

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  9. What is meant by 'disproportionation'? Give two examples of disproport...

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  10. Describe the preparation of potassium permanganate. How does the acidi...

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  11. Describe the preparation of potassium dichromate from iron chromite or...

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  12. Describe the oxidising action of potassium dichromate and write the io...

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  13. When a white crystalline compound X is heated with K(2)Cr(2)O(7) and c...

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  14. The +3 oxidation states of langthanum ( Z= 57), gadolinium (Z= 64) and...

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  15. Why Sm^(2+), Eu^(2+) and Yb^(2+) ions in solutions are good reducing a...

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  16. What is lanthanoid contraction? What are the consequences of lanthanol...

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  17. What are aloloyys ? Name an important alloy which contains some of th...

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  18. Actinoid contraction is greater from element to element than lanthanoi...

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  19. Comparethe chemistry of actinoids with that of lanthanoids with specia...

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  20. Name the elements of 3d series. Give their electronic configuration. E...

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