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

Gujarat BoardEnglish MediumSTD 12 ScienceChemistry4. d and f- block elements1 Mark
MCQ
The tendency towards complex formation is maximum in
  • A
    $s -$  block elements
  • B
    $p -$  block elements
  • ✓
    $d - $ block elements
  • D
    $f -$  block elements
✓

Answer

Correct option: C.
$d - $ block elements
c
(c) $d-$ block elements; because

$(i)$ Small atomic size

$(ii)$ High nuclear charge

$(iii)$ Presence of vacant $d-$ orbitals

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