Phenol coefficient indicates:: (A) Efficacy of a disinfectant, (B) Dilution of a disinfectant, (C) Quantity of a disinfectant, (D) Purity of a disinfectant
Answer is A. Ans. is 'a' i.e., Efficacy of a disinfectant Phenoliccoefficientofatestdisinfectant=PhenolthatkillsS.Typhiinagivensametime (Highestdilution)DisinfectantthatkillsS.typhiinagiventime (Highestdilution)