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The lanthanoide which shows all i.e., +2...

The lanthanoide which shows all i.e., `+2,+3 and +4` oxidation state is

A

europium

B

samarium

C

neodymium

D

gadolinium

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The correct Answer is:
C
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Name a member of the lanthanoid series which is well known to exhibit +4 oxidation state.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name an element of lanthanoid series, which is known to show +4 oxidation state. Is it a strong oxidising agent or reducing agent?

Name a member of the lanthanoid series which is well known to exhibit +2 oxidation state.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Name two lanthanoids which exhibit +2 oxidation state.

Lanthanoids and actinoids are f-block elements in which the last electron enters the anti-penultimate energy level. The most common oxidation state of lanthanoids is +3, though +2 and +4 oxidation states are exhibited by some of the elements. In lanthanoid series, there is a progressive decrease in atomic and ionic radii, known as lanthanoid contraction. Unlike lanthanoids, actinoids show a large number of oxidation states. Which out of La(OH)_3 and Lu(OH)_3 is more basic?

NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
  1. The most basic hydroxide is

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  2. Which of the M^(4+) ion has more tendency to gain single electron ?

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  3. The lanthanoide which shows all i.e., +2,+3 and +4 oxidation state is

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  4. The lanthanoide ion used as oxidizing agent is

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  5. Tb ^(+4) has electronic configuration 4f ^(7) 5d ^(0) 6s ^(0). Because...

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  6. What is the correct order of basicity of hydroxide ?

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  7. Eu^(2+) ion has strong tendency to

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  8. The lanthanoide ion with e.c. 4 f^(14) 5d ^(0) 6s^(0) has tendecny to

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  9. Actinides exhibits oxidation state

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  10. 4f^(2) 5d^(0) 6s^(0) is the electronic configuration of lanthanoide io...

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  11. Which of the following M^(2+) is not a stable oxidation state ?

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  12. The Yb ^(2+) and Lu ^(3+) ion has electronic configuration

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  13. Which of the following M^(4+) cations does not have stable electronic ...

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  14. The ions having 4f ^(0), 5d^(0)6s^(0) stable electronic configuration ...

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  15. Lanthanides does not show +4 O. S. in which of the following configura...

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  16. Erbium shows was oxidations state

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  17. Cerium shows most common oxidation state

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  18. Which of the following tripositive ion has half filled 4 f subshell ?

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  19. Ce ^(4+) is used as oxidising agent because

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  20. +2 and +3 oxidation state is stable in which of the following respecti...

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