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The actinoids exhibit more number of oxi...

The actinoids exhibit more number of oxidation states in general than the lanthanoids. This is because

A

the 5 f orbital extend farther from the nucleus than the '4 (f)' orbitals.

B

the '5 (f)' orbitáls are more buried than the '4 (f)' orbitals

C

there is a similarity between '4 (f)' and 5 f orbitals in their angular part of the wave function.

D

the actinoids are more reactive than the lanthanoids

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A
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V PUBLICATION-THE d- AND f- BLOCK ELEMENTS-QUESTION BANK
  1. Galvanisation is the

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  2. Cinnabar is an ore of

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  3. Nessler's reagent is

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  4. Which of the following melts in boiling water

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  5. Which of the following elements involve gradual filling of 5f level

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  6. Which compound is formed when excess of KCN is added to an aqueous sol...

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  7. Which of the following belongs to the actinide series of elements

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  8. 'Which of the following statement is not correct?

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  9. General electric configuration of lanthanides is A. (n−2)f1−14(n−1)s2p...

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  10. Lanthaide contraction is dure to increase in

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  11. The lanthanide contraction is responsible for the fac t that

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  12. Which one of the following elements shows maximum number of different ...

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  13. Arrange Ce3+, La3+, Pm3+ and Yb3+ in increasing order of their ionic r...

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  14. Lanthanide contraction is observed in

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  15. Which of the following is not an actinide?

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

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  17. When hydrogen peroxide is added to acidified potassium dichromate, a b...

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  18. K2Cr2O7 reacts with NH4Cl in presence of H2SO4 The product formed is

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  19. Identify the incorrect statement among the following

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  20. The purple colour of (KMnO)(4) is due to : C.T(L) rarr (M), C.T (...

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