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(i)How do antiseptics differ from disinfectants ? Give one example of each . (ii)Name a substance which can be used as an antiseptic as well as disinfectant ? |
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Answer» SOLUTION :Antiseptics are chemical substances which prevent the growth of microorganisms and may even kill them but are not harmful to human or animal tissues. For example, dettol and savlon. They are generally APPLIED on wounds, cuts, ulcers and DISEASED skin surfaces. Furacin and soframycin are well known antiseptic creams Disinfectants are chemical substances which kill microorganisms but are not safe to be applied to the living tissues. These are generally used to kill microorganisms present in the drains, toilets. Doors, etc Some common examples of disinfectants are PHENOL (`GE`1% solution) and chlorine (0.2 to 0.4 ppm). |
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