The most important constituent in soda lime for reabsorption of CO2 in a closed circuit is –: (A) Sodium hydroxide, (B) Barium hydroxide, (C) Calcium hydroxide, (D) Potassium hydroxide
Answer is C. Sodalime contains Ca(OH)2 (94%), NaOH (5%), KOH (< 1%), Silica, indicator and moisture.