Chemical KineticsConcentration-Time Curve and Reaction Rate1Choose the best answerDuring a reaction, the concentration–time curve initially changes rapidly but becomes nearly horizontal after a long time. In this nearly horizontal region, the concentration changes very little with time. What does this indicate?AReaction rate is maximumBReaction rate is rapidly increasingCReaction rate is approximately zeroDConcentration is changing rapidly Like 0 Discuss 0Share