Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Amongst 
and 
which are the colourless species? (Atomic number of 
)
A
and 
B
and 
C
and 
D
and 
Text Solution
Verified by ExpertsThe correct answer is:
B
In 
titanium is in 
state. In 
, the copper is in 
state. Thus, in both cases, transition from one 
‐ orbital to other is not possible.
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