In Liebig's combustion method for the estimation of carbon and hydrogen, the and formed are absorbed by passing the gaseous mixture through U-tubes. What are the correct absorbents used for and respec

Question

In Liebig's combustion method for the estimation of carbon and hydrogen, the $H_2O$ and $CO_2$ formed are absorbed by passing the gaseous mixture through U-tubes. What are the correct absorbents used for $H_2O$ and $CO_2$ respectively?

Prashant Kotian · Accepted Answer

Correct answer: A. During Liebig's combustion, water vapor is absorbed first by a U-tube containing anhydrous calcium chloride (). The carbon dioxide is then absorbed by a second U-tube containing a concentrated solution of potassium hydroxide ().

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