Halogen Estimation
In Carius method for halogen estimation, the precipitate formed is:
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About This Question
- Subject
- chemistry
- Chapter
- purification and characterisation of organic compounds
- Topic
- halogen estimation
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
AgX
The Carius Method estimates the halogen content in an organic compound.
- Procedure: A known mass of the compound is heated with fuming Nitric acid (HNO3) and Silver nitrate (AgNO3) in a hard glass tube (Carius tube).
- Mechanism: The carbon and hydrogen are oxidized to CO2 and H_2_O while the halogen is converted into an insoluble Silver Halide (AgX) precipitate.
- Result: The precipitate is filtered, washed, dried, and weighed. The percentage of halogen is then calculated from the mass of AgX obtained.
This easy difficulty chemistry question is from the chapter purification and characterisation of organic compounds, covering the topic of halogen estimation. It appeared in the 2025 exam.
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