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STD 12 - 4. d and f- block elements — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. d and f- block elements4 Marks
MCQ
Transition metals are not characterized by
  • ✓
    fixed valency
  • B
    coloured compound
  • C
    high melting and boiling points
  • D
    tendency to form complexes
✓

Answer

Correct option: A.
fixed valency
a
They do not have fixed valencies since they also have vacant orbitals due to which they show exciting property and when they loose/radiate their energy they impart color in the visible region and also due to availability of vacant orbitals it show wide oxidation numbers and hence make many complex compounds.

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