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The d & f Block Elements — Chemistry STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceChemistryThe d & f Block Elements1 Mark
MCQ
Choose the correct statement.
  • A
    Only few transition metal complexes are coloured.
  • B
    d-orbital are degenerated hence, they form complexes.
  • C
    Transition metal complexes reflect the complimentary colour of absorbed colour.
  • D
    Energy difference between t2(g)​ and tg​ level is very large.
✓

Answer

  1. Transition metal complexes reflect the complimentary colour of absorbed colour.

Explanation:

During this d-d transition process, the electrons absorb certain energy from the radiation and emit the remainder of energy as colored light. The color of ion is complementary of the color absorbed by it.

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