Chemistry - Coordination Chemistry Question with Solution | TestHub
ChemistryCoordination ChemistryVBT,CFT(complex compound)Medium2 minQB
ChemistryMediummultiple choice
Identify the complexes that are expected to be colored:
(a) [Ti(NO₃)₄] (b) [Cu(NCCH₃)₄]BF₄ (c) [Cr(NH₃)₆]Cl₃ (d) K₃[VF₆]
Options:(select one or more)
Answer:
C, D
Solution:
[Ti(NO3)4] → Ti(IV) is d⁰, no d-electrons to undergo d–d transitions → colorless.
[Cu(NCCH3)4]BF4 → Cu(I) is d¹⁰, fully filled d-orbitals → colorless.
[Cr(NH3)6]Cl3 → Cr(III) is d³, has partially filled d-orbitals → colored due to d–d transitions.
K3[ VF6 ] → V(III) is d², has partially filled d-orbitals → colored due to d–d transitions.
Stream:JEESubject:ChemistryTopic:Coordination ChemistrySubtopic:VBT,CFT(complex compound)
⏱ 2mℹ️ Source: QB
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