The incorrect statement about electrochemistry is
the study of generation of electricity by spontaneous chemical reactions
the study of use of electrical energy to bring out a non-spontaneous chemical reaction
reaction based on it is not so efficient and ecofriendly
Transmission of sensory signals through cells to brain are of electrochemical origin
The reaction carried out electrochemically can be energy efficient and less polluting, i.e. ecofriendly. All other given statements are true.