NEET Chemistry Organic Preparations MCQ Question
In the preparation of iodine from sodium iodide using manganese dioxide and concentrated sulphuric acid, how many moles of manganese dioxide are required to completely react with 2 moles of sodium iodide?
1 mole
2 moles
0.5 moles
4 moles
Correct Answer
Detailed Explanation
According to the equation 2NaI + MnO2 + 2H2SO4 → I2 + MnSO4 + Na2SO4 + 2H2O, 1 mole of MnO2 is required to react with 2 moles of NaI.
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?