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4. d and f- block elements — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
Lanthanum is grouped with $f-$ block elements because
  • A
    It has partially filled $f -$ orbitals
  • B
    It is just before $Ce$  in the periodic table
  • C
    It has both partially filled $f $ and $d-$ orbitals
  • ✓
    The properties of Lanthanum are very similar to the elements of $4f  $ block
✓

Answer

Correct option: D.
The properties of Lanthanum are very similar to the elements of $4f  $ block
d
It’s Obvious.

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