NEET Chemistry Organic Preparations MCQ Question
Which combinations of statements accurately describe the organic preparation methods involving iodide ions?
A: The reaction with manganese dioxide produces iodine vapors; B: Violet color in organic layer indicates iodide presence; C: Heating with concentrated sulfuric acid does not yield iodine.
A: The reaction with manganese dioxide produces iodine vapors; B: Violet color in organic layer indicates iodide presence; C: Heating with concentrated sulfuric acid yields iodine.
A: The reaction with manganese dioxide produces iodine vapors; B: Iodine does not dissolve in organic solvents; C: Violet color in organic layer indicates iodide presence.
A: Heating with concentrated sulfuric acid yields sulfur dioxide; B: Violet color in organic layer indicates iodide presence; C: Reaction with manganese dioxide yields sulfur.
Correct Answer
Detailed Explanation
Statement A is correct as manganese dioxide reacts to produce iodine vapors. Statement B is correct because a violet color in the organic layer confirms iodide presence. Statement C is incorrect because heating with concentrated sulfuric acid does yield iodine, contradicting the statement.
Found an issue with this question?
Related Questions
More from Organic Preparations
Assertion (A): The evolution of violet vapors when MnO2 is added to a reaction mixture containing NaI and H2SO4 indicates the presence of iodide ions....
Assertion (A): The presence of iodide ions can be confirmed by the violet color in the organic layer. | Reason (R): Iodine dissolves in the organic so...
More from
What white precipitate is formed when calcium chloride solution is added to an acidified sodium carbonate extract containing oxalate ions?
Which of the following statements about functional group tests are correct?
Which of the following combinations correctly describes tests related to functional groups in qualitative analysis?