The complexes formed by Cu^ 2+ ion are more stable than those formed by Cd^ 2+ ion because __________

MHT CET Chemistry question

The complexes formed by ion are more stable than those formed by ion because

(A)The value of the stability constant for complexes is greater than that of ions
(B)The charge density on is greater than that of ionCorrect
(C)The ionic radius of ion is more than that of ion
(D) ion forms chelate compounds

Answer: (B)

is smaller than with the same charge, so its charge density is greater and it binds ligands more strongly; (a) and (c) are

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Question ID VK-073175