NEET2013ChemistryChemistry in Everyday LifeActual
Antiseptics and disinfectants either kill or prevent growth of microorganisms. Identify which of the following is not true.
Options
- AA 0.2 % solution of phenol is an antiseptic while 1 % solution acts as a disinfectant
- BChlorine and iodine are used as strong disinfectants
- CDilute solutions of boric acid and hydrogen, peroxide are strong antiseptics
- DDisinfectants harm the living tissues
Correct answer
C. Dilute solutions of boric acid and hydrogen, peroxide are strong antiseptics
Step-by-step solution
Antiseptics and disinfectants both either kill or prevent the growth of microorganisms. The main point of difference between these two is that the former (antiseptics) are used for living beings whereas disinfectants are not safe for living tissues. These are actually used for inanimate objects like floors, tiles etc. A substance like phenol in its lower concentration (0.2 %) behaves as antiseptic wheras in higher concentration (1 %) as disinfectant. Chlorine and iodine are strong disinfectants whereas dilute solut