To identify and estimate metal ion such as cd ^2+ ,pb^2+,zn^2+,ni^2+ using polarographically

To identify and estimate metal ion such as cd ^2+ ,pb^2+,zn^2+,ni^2+ u

1.	To identify and estimate metal ion such as cd ^2+ ,pb^2+,zn^2+,ni^2+ using polarographically
Answer» by indentyfing it and ESTIMATING it