Formation of which complex, among the following, is not a...

Formation of which complex, among the following, is not a confirmatory test of

{Pb}^{2 +}

ions

Options

ALead sulphate
BLead nitrate
CLead chromate
DLead iodide

Correct answer

B. Lead nitrate

Step-by-step solution

On adding ${H}_{2}{SO}_{4}$ to ${Pb}^{2 +}$ , white precipitate of lead sulphate, ${PbSO}_{4}$ is formed. By adding potassium iodide solution to ${Pb}^{2 +}$ - Yellow precipitate of lead iodide is formed. The ppt dissolves in boiling water and on cooling recrystallises.
By adding potassium chromate solution to ${Pb}^{2 +}$ –Yellow precipitate of lead chromate is formed. But lead nitrate is a water soluble compound.

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