what is formed when KOH absorbs Co2 ? means what is the reaction Share with your friends Share 2 Surabhi Gupta answered this The reaction involved is as follows:2KOH + CO2 --------> K2CO3 + H2O -1 View Full Answer Varshini Srinivasan answered this when KOH absorbs CO2than a partial vacuum is developed in that area 0 Mousumi Mahato answered this KOH + CO2 -> KHCO3 -3