Qualitative and Quantitative AnalysishardMCQ SINGLE

In the quantitative estimation of carbon and hydrogen, the combustion products and are passed througQualitative and Quantitative Analysis Chemistry Question

Question

In the quantitative estimation of carbon and hydrogen, the combustion products $CO_2$ and $H_2O$ are passed through specific absorbing reagents. Which of the following accurately represents the standard reagents used?

Answer: B

💡 Solution & Explanation

In Liebig's combustion method, the water vapor produced is absorbed by anhydrous calcium chloride ($CaCl_2$) or magnesium perchlorate ($Mg(ClO_4)_2$), causing an increase in mass. The carbon dioxide ($CO_2$) is subsequently absorbed by a concentrated solution of potassium hydroxide ($KOH$), which reacts to form $K_2CO_3$.

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