NEET Chemistry Functional Group Tests MCQ Question
Which of the following statements about functional group tests is correct?
The addition of ammonium oxalate to a calcium solution yields a white precipitate.
Calcium ions produce a crimson red flame when subjected to a flame test.
Aluminium hydroxide forms a blue mass when blue litmus is added to its solution.
Strontium ions do not produce any precipitate when tested with sodium hydroxide.
Correct Answer
Detailed Explanation
Statement A is correct as ammonium oxalate does yield a white precipitate with calcium ions. Statement B is incorrect; calcium ions impart a brick red flame, not crimson. Statement C misrepresents the lake test; blue litmus does not form a blue mass directly. Statement D is false since strontium sulphate forms a white precipitate.
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