(A) Cerium $(Z = 58)$ has an electronic configuration of $[Xe] 4f^1 5d^1 6s^2$.It exhibits both $+3$ and $+4$ oxidation states.The $+4$ oxidation stat

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The $+4$ oxidation state of cerium is not known in solutions

(A) Cerium $(Z = 58)$ has an electronic configuration of $[Xe] 4f^1 5d^1 6s^2$.It exhibits both $+3$ and $+4$ oxidation states.The $+4$ oxidation state of cerium is well-known and stable in aqueous solutions,where it acts as a strong oxidizing agent.Therefore,the statement that the $+4$ oxidation state is not known in solutions is incorrect.

Class 12 Chemistry d-and f-Block Elements Lanthanoids and Actinoids

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Cerium $(Z = 58)$ is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?

AIEEE 2004 All AIEEE

A
The $+4$ oxidation state of cerium is not known in solutions
B
The $+3$ oxidation state of cerium is more stable than the $+4$ oxidation state
C
The common oxidation states of cerium are $+3$ and $+4$
D
Cerium $(IV)$ acts as an oxidizing agent

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Class 12

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d-and f-Block Elements

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Lanthanoids and Actinoids

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AIEEE 2004 Paper All AIEEE years →

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Cerium $(Z = 58)$ is an important member of the lanthanoids. Which of the following statements about cerium is incorrect?

Similar Questions

Which one of the following lanthanides exhibits $+2$ oxidation state with diamagnetic nature? (Given $Z$ for $Nd=60, Yb=70, La=57, Ce=58$)

What is the effect of lanthanoid contraction in the lanthanoid series of elements with increasing atomic number?

Which of the following elements belongs to the actinoid series?

More number of oxidation states are exhibited by the actinoids than by the lanthanoids. The main reason for this is

Compare the chemistry of the actinoids with that of lanthanoids with reference to:$(i)$ electronic configuration$(ii)$ oxidation states and$(iii)$ chemical reactivity.

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Compare the chemistry of the actinoids with that of lanthanoids with reference to:
$(i)$ electronic configuration
$(ii)$ oxidation states and
$(iii)$ chemical reactivity.