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Question

Antiseptics and disinfectants either kill or prevent the growth of microorganisms. Identify which of the following statements is not true.
  1. A 0.2 % solution of phenol is an antiseptic while 1 % solution acts as a disinfectant
  2. Chlorine and Iodine are used as strong disinfectants
  3. Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics
  4. Disinfectants harm the living tissues

A
Disinfectants harm the living tissues
B
Chlorine and Iodine are used as strong disinfectants
C
Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics
D
A 0.2 % solution of phenol is an antiseptic while 1 % solution acts as a disinfectant
Solution
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