Question

Suggest reasons for the following observation:

(b) [EDTA]*- forms very stable complexes with first row d-block metal ions M-+ (e.g. log K = 18.62 for the complex with Ni-+); where the M°+ ion is accessible, complexes between MP and [EDTA]* are more stable than between the corresponding M²+ and [EDTA]4- (e.g. log K for the complex with Cr2+ is 13.6, and for Cr°* is 23.4).

Answer 1

hi, wrote answer in ruled paper, as due to COVID-19 nationwide lockdown , all shops are closed. hence didnt get white plain paper

01/04/2010 0 While considering stability of complex C EDTA Complex with metal ions, Following factors should be Considered - Tonic cize : smaller ometalion (small radius of metal) greater its electrical field, more stable com " Ionic charge! Metal of higher charge complexes give more stable form. Above etable factors helps to decide M 3tions Compledes with EDTA.