NEET Chemistry Functional Group Tests MCQ Question
Which of the following statements about functional group tests is correct?
Barium sulfate is formed as a white precipitate when sulfate ions react with barium chloride.
Lead acetate solution produces a red precipitate with sulfate ions in acetic acid.
Phosphate ions form a yellow solution when treated with ammonium molybdate.
Aluminum ions do not form any precipitate when treated with sodium hydroxide.
Correct Answer
Detailed Explanation
Statement A correctly describes the reaction of sulfate ions with barium chloride, resulting in a white precipitate of barium sulfate. Statement B is incorrect because lead sulfate forms a white precipitate, not red. Statement C is misleading; phosphate ions form a yellow precipitate, not a solution. Statement D is false as aluminum ions react with sodium hydroxide to form a precipitate.
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