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Statement-1 : Occasionally +2 and +4 oxi...

Statement-1 : Occasionally +2 and +4 oxidation states of lanthanides are obtained.
Statement-2: Empty, half-filled or filled f-subshell are extra stable.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.

C

Statement-1 is True, Statement-2 is false

D

Statement-1 is False and Statement-2 is True.

Text Solution

Verified by Experts

The correct Answer is:
A
`+2` and `+4` oxidation state occur if `f^(0), f^(7), f^(14)` E.C. occur.
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Knowledge Check

  • The most stable +2 oxidation state in Lanthanides is

    A
    Ce
    B
    Eu
    C
    Tb
    D
    Dy

  • Statement-1 : The third ionisation enthalpy of La, Gd and Lu are abnormally low. Statement-2 : Empty, half-filled and completelt filled orbitals of f-level are extra stable.

    A
    Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.
    B
    Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.
    C
    Statement-1 is True, Statement-2 is false
    D
    Statement-1 is False and Statement-2 is True.

  • Which has most stable +2 oxidation state :

    A
    Sn
    B
    Pb
    C
    Fe
    D
    Ag

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