Question

In qualitative inorganic analysis, phosphate, if present, is to be eliminated in the appropriate group in order to detect the radical
A. `Pb^(2+)`
B. `As^(3+)`
C. `Ca^(2+)`
D. `Cd^(2+)`

Answer 1

`PO_(4)^(3-)` radical interferences in the detection of basic radicals after group II.