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Model Paper 5 — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryModel Paper 51 Mark
MCQ
d-Block Elements are characterized by the:
  • A
    inner d orbitals are not filled.
  • B
    absence of d orbital electrons.
  • C
    filling of outer d orbitals.
  • ✓
    filling of inner d orbitals by electrons.
✓

Answer

Correct option: D.
filling of inner d orbitals by electrons.
(d) filling of inner d orbitals by electrons.
Explanation: d-Block elements also known as transition elements are characterized by the filling of inner d orbitals by electrons before the valence-shell s orbital.

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