NEET Chemistry Functional Group Tests MCQ Question
Which of the following statements about functional group tests are correct?
A yellow precipitate of potassium hexanitritocobaltate(III) indicates the presence of cobalt ions.
Basic mercury(II) amido-iodine is formed when gases are passed through Nessler's reagent.
If a salt solution is acidic, it can indicate the presence of a weak base.
All salts dissolve in water without any heating or additional solvents.
Correct Answer
Detailed Explanation
The yellow precipitate of potassium hexanitritocobaltate(III) confirms cobalt ions, as mentioned in the context. The other options either misrepresent the nature of the tests or the solubility behavior of salts.
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