Chemistry - f-block Question with Solution | TestHub
Chemistryf-blockf-blockMedium2 minQB
ChemistryMediummultiple choice
Generally transition elements and their salts are colored due to the presence of unpaired electrons in metal ions. Which of the following compounds are colored?
Options:(select one or more)
Answer:
A, B
Solution:
Transition metal compounds are coloured due to d–d electronic transitions in partially filled d-orbitals.
Potassium permanganate is strongly coloured due to charge transfer transitions (purple).
Cerium(IV) sulfate shows colour due to Ce⁴⁺ electronic transitions.
Titanium tetrachloride is colourless as Ti⁴⁺ has no d-electrons (d⁰).
Copper(I) chloride is also colourless due to fully filled d-subshell.
Hence, colored compounds are A and B only.
Stream:JEESubject:ChemistryTopic:f-blockSubtopic:f-block
⏱ 2mℹ️ Source: QB
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