NEET Chemistry Functional Group Tests MCQ Question
Which of the following statements about functional group tests for lead ions is correct?
The addition of potassium chromate to a lead solution forms a yellow precipitate confirming Pb 2+ ions.
Lead sulfate is insoluble in ammonium acetate solution.
A white precipitate forms on adding potassium chromate to a solution containing lead ions.
Lead chromate precipitate is formed only in cold solutions.
Correct Answer
Detailed Explanation
The addition of potassium chromate (K2CrO4) to a lead solution results in the formation of a yellow precipitate of lead chromate (PbCrO4), confirming the presence of Pb 2+ ions.
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