All acidic solution contains H+ (proton). So, while balancing the redox reaction, H+ comes from the acidic solution. Hence, option C is the right answer Recommended textbooks for you Chemistry & Chemical Reactivity Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel Publisher:Cengage Learning Chemistry & Chemical Reactivity Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel Publisher:Cengage Learning Chemistry Publisher:Cengage Learning Chemistry: Principles and Reactions Author:William L. Masterton, Cecile N. Hurley Publisher:Cengage Learning Chemistry Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste Publisher:Cengage Learning Chemistry: An Atoms First Approach Author:Steven S. Zumdahl, Susan A. Zumdahl Publisher:Cengage Learning Chemistry & Chemical Reactivity ISBN:9781337399074 Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel Publisher:Cengage Learning Chemistry & Chemical Reactivity ISBN:9781133949640 Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel Publisher:Cengage Learning Chemistry ISBN:9781133611097 Author:Steven S. Zumdahl Publisher:Cengage Learning Chemistry: Principles and Reactions ISBN:9781305079373 Author:William L. Masterton, Cecile N. Hurley Publisher:Cengage Learning Chemistry ISBN:9781305957404 Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste Publisher:Cengage Learning Chemistry: An Atoms First Approach ISBN:9781305079243 Author:Steven S. Zumdahl, Susan A. Zumdahl Publisher:Cengage Learning |