Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Among 
, 
, Cu2Cl2 and 
the colourless species are:
A
and 
B
and 
C
and Cu2Cl2
D
and Cu2Cl2
Text Solution
Verified by ExpertsThe correct answer is:
D
Ti4+, [Ar]18 3d0 4s0 ; as there is no unpaired electron, so no d-d transition occurs.
Cu+ , [Ar]18 3d10 4s0 ; all electrons are paired, so there is no unpaired electron for d-d transition.
Hence both complexes are colourless.
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