Justify this statement with suitable logic
A co(nh3)6)2plus ion is easily oxidisable while (co(no2)6)4- is not
B- cu(cn)4 ) 3minus and cd(cn)4)2minus can be seperated from the mix on passing h2s gas
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2) Cd complex is not too stable and it get easily ionized to produce Cd2+ ions as follows:
[Cd(CN)4]2-Cd2+ + 4CN-
So if the solution contain mixture of [Cd(CN)4]2- and [Cu(CN)4]3- ,Cd precipitates as CdS on passing H2S and it is separated from solution as yellow ppt.
2) Cd complex is not too stable and it get easily ionized to produce Cd2+ ions as follows:
[Cd(CN)4]2-Cd2+ + 4CN-
So if the solution contain mixture of [Cd(CN)4]2- and [Cu(CN)4]3- ,Cd precipitates as CdS on passing H2S and it is separated from solution as yellow ppt.