The stability constants of the complexes formed by a metal ion (M2+) with NH3, CN-, H2O and en are of the order 1011, 1027, 1015, and 108 respectively. This shows

Question

The stability constants of the complexes formed by a metal ion (M2+) with NH3, CN-, H2O and en are of the order 1011, 1027, 1015, and 108 respectively. This shows (A) en is the strongest ligand (B) CN- is the strongest ligand (C) values cannot predict the strength of the ligand (D) all the ligands are equally strong.

Tardigrade Admin · Accepted Answer

Higher the value of stability constant, stronger will be the ligand. Thus CN- is the strongest ligand as it has 1027 value of stability constant.

Q. The stability constants of the complexes formed by a metal ion $(M^{2 +})$ with $N H_{3}, C N^{-}, H_{2} O$ and en are of the order $1 0^{11}, 1 0^{27}, 1 0^{15},$ and $1 0^{8}$ respectively. This shows

en is the strongest ligand

$C N^{-}$ is the strongest ligand

values cannot predict the strength of the ligand

all the ligands are equally strong.

Higher the value of stability constant, stronger will be the ligand. Thus $C N^{-}$ is the strongest ligand as it has $1 0^{27}$ value of stability constant.

Q. The stability constants of the complexes formed by a metal ion (M2+) with NH3​,CN−,H2​O and en are of the order 1011,1027,1015, and 108 respectively. This shows