NEETChemistryGeneral Organic Chemistry
How is nitrogen collected in the Dumas method, and what gas is absorbed to remove it from the mixture?
Options
- ACollected over potassium hydroxide solution; carbon dioxide
- BCollected over sulfuric acid; carbon dioxide
- CCollected over potassium hydroxide solution; oxygen
- DCollected over sulfuric acid; oxygen
Correct answer
A. Collected over potassium hydroxide solution; carbon dioxide
Step-by-step solution
In the Dumas method, nitrogen is collected in the upper part of a graduated tube over an aqueous solution of potassium hydroxide, which absorbs carbon dioxide.