NEET Chemistry Functional Group Tests MCQ Question
Which of the following combinations correctly describes the functional group tests for identifying ions in a salt solution?
A yellow precipitate indicates the presence of Pb2+ ions; a white precipitate confirms the presence of SO4 2- ions.
A yellow precipitate indicates the presence of SO4 2- ions; a white precipitate confirms the presence of Cl- ions.
No precipitate indicates the presence of anions; heating is required for all tests.
A white precipitate indicates the presence of PO4 3- ions; a yellow solution confirms Ba2+ ions.
Correct Answer
Detailed Explanation
The yellow precipitate confirms the presence of Pb2+ ions when K2CrO4 is added, while the white precipitate of barium sulfate confirms the presence of SO4 2- ions when barium chloride is used, as mentioned in the NCERT context.
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