Formation of which complex, among the following, is not a confirmatory test of Pb2+ ions
lead sulphate
lead nitrate
lead chromate
lead iodide
The Correct Option is B
Solution and Explanation
Lead Nitrate and Confirmatory Tests
Lead nitrate, \( \text{Pb(NO}_3)_2 \), is a soluble colorless compound. Confirmatory tests for ions usually involve the formation of a precipitate or a distinctly colored complex.
Lead sulphate (white precipitate), lead chromate (yellow precipitate), and lead iodide (yellow precipitate) are all used as confirmatory tests for lead(II) ions.
Since lead nitrate is colorless and soluble, it's not used as a confirmatory test.
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