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The most common oxidation state of Lanth...

The most common oxidation state of Lanthanoids is

A

`+4`

B

`+3`

C

`+6`

D

`+2`

Text Solution

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The correct Answer is:
B
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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.

Most common oxidation state of actinoids is ......... .

Knowledge Check

  • The most common oxidation stae of Lanthanoids is

    A
    `+4`
    B
    `+3`
    C
    `+6`
    D
    `+2`

  • The most common oxidation state of lanthanoids are :

    A
    `+1,+2`
    B
    `+2,+4`
    C
    `+2`
    D
    `+2,+3,+4`

  • The common oxidation state of actinides is

    A
    `+4`
    B
    `+5`
    C
    `+3`
    D
    `+7`

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    Most stable oxidation state of Lanthanoids

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