Which of the following is wrong regarding disinfection?
(a) It should be readily available at reasonable cost
(b) Its method of application should be simple
(c) It should render the water toxic for its intended use
(d) It should act as safeguard against re-contamination
The question was asked by my college director while I was bunking the class.
The query is from Methods of Disinfection topic in chapter Properties of Disinfection of Environmental Engineering