A compound was used in the half leaf experiment to absorb CO2. This compound is ______AKMNO4BHClCNaOHDKOHAnswer: D. KOH Read Explanation: KOH was the compound used in half leaf experiment to absorb CO2. The part of the leaf enclosed in test tube contained some KOH soaked cotton while the other half was exposed to air. KOH has got the capability to absorb CO2. Read more in App