MCQ
Which is not true for transition elements
  • A
    They are all metals
  • B
    They show variable valency
  • C
    They form coloured ions
  • They do not form co-ordinate compounds

Answer

Correct option: D.
They do not form co-ordinate compounds
d
$(d)$ Transition elements form co-ordinate compounds because of

$(i)$ High nuclear charge

$(ii)$ Small size

$(iii)$ Vacant $d-$ orbital

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