Concept:Alkanoic acids react reversibly with alkanols to form esters and water.Explanation:This is a condensation reaction between an acid and an alcohol.A molecule of water is eliminated during the process.The general equation is:RCOOH+R′OH⇌RCOOR′+H2OBecause the reaction can proceed in both directions, it is described as reversible.The name given to this reversible acid-alcohol reaction is esterification.Answer:B. esterification