Published by:
CGP EDU Academic Team
Published on: August 11, 2026
The correct order of the first ionization enthalpy is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
(i) due to lanthanide contraction 
has more I.E.
as compared to 
and 
(ii) due to scandide contraction Ga has more I.E. as compared to 
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