Chemistry
Chemistry
Problem
Complexes formed in the following methods are : (I) Mond's process for purification of nickel (II) Removal of unreacted AgBr from photographic plate (III) Removal of lead poisoning from the body| I | II | III |
|---|---|---|
| a. Ni(CO) 4 | [Ag(CN) 2 ] - | [Pb(EDTA)] 2- |
| b. Ni(CO) 4 | [Ag(S 2 O 3 ) 2 ] 3- | [Pb(EDTA)] 2- |
| c. Ni(CO) 6 | [Ag(S 2 O 3 ) 2 ] 3- | [Pb(EDTA)] 4- |
| d. Ni(CO) 6 | [Ag(S 2 O 3 ) 2 ] - | [Pb(EDTA)] 2- |