Question

The central ion Ag⁺ with coordination number 2 forms a positive complexion with 

NH₃ ligand. Also Ag forms a negative complex with CN- ligand. 

a) Writetheformula of above positive and negative complexions. Give the IUPAC name of each. 

b) Give the denticity of NH₃ and CN- ligands. 

c) Write the formula and name of a hexadentate ligand.

Answer 1

a) [Ag(NH₃)₂]⁺ – Diamminesilver (l) ion 

[Ag(CN)₂] – Dicya noargentate(l) ion

b) Denhcìty of NH₃ is 1, since N isthe only donor atom. Densicity of CN is 2, since both C and N atoms can act as donor atoms. 

c) (EDTA⁴) ion –

Ethylenediaminetetraacetate ion.