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UPSEE Solved Model Paper 1
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© examsnet.com
Question : 51
Total: 150
The increasing order of atomic radii of the following group 13 elements is
Al < Ga < In < Tl
Ga < Al < In < Tl
Al < In < Ga < Tl
Al < Ga < Tl < In
Validate
Solution:
Atomic radius increases on moving down the group but due to poor shielding of d orbital, atomic radius of Ga is smaller than Al.
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