Question

Antiseptics and disinfectants either kill or prevent growth of
microorganisms. Identify which of the following statements
is not true: [2013]
(a) Chlorine and iodine are used as strong disinfectants.
(b) Dilute solutions of boric acid and hydrogen peroxide
are strong antiseptics.
(c) Disinfectants harm the living tissues.
(d) A 0.2% solution of phenol is an antiseptic while 1%
solution acts as a disinfectant.

Answer 1

$\huge\bold\red{Answer:-}$

(b) Dilute solutions of boric acid and hydrogen peroxide are strong antiseptics.

Answer 2

Answer:

Dilute solutions of boric acid and hydrogen peroxide  are strong antiseptics - not true.

Correct answer - "b".

Step by step explanation:

• Chlorine and iodine  are used as good disinfectants.
• Disinfectant is an chemical agent that specifically frees from infection and also that kills vegetative types of dangerous microorganisms.
• Hence, Disinfectants harm the living tissues.
• A 0.2% solution of phenol is an antiseptic while 1% solution acts as a disinfectant.
• Dilute boric acid solution is an antiseptic used to wash skin, and disinfectant is hydrogen peroxide.
• Therefore, option -"b" is incorrect.

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