MCQ
Which of the following ions form most stable complex compound[
  • $C{u^{ + 2}}$
  • B
    $N{i^{ + 2 }}$
  • C
    $F{e^{ + 2 }}$
  • D
    $M{n^{ + 2 }}$

Answer

Correct option: A.
$C{u^{ + 2}}$
a
(a)The magnitude of stability constants for some divalent metal ions of the first transition series with oxygen or nitrogen donar ligands increases in the order.

$M{n^{2 + }} < F{e^{2 + }} < C{o^{2 + }} < N{i^{2 + }} < C{u^{2 + }} < Z{n^{2 + }}$

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